September's modern and traditional birthstones explained — what they mean, how they differ, and how to choose. Sapphire's symbolism, lapis lazuli's 6,000-year history, the Virgo and Libra zodiac connections, and a working jeweler's framework.
This is the September birthstone overview pillar. For the complete sapphire engagement ring buying guide — color, setting, metal, and what to know before buying — see our Sapphire Engagement Rings Complete Buying Guide.
September's modern birthstone is sapphire — and its traditional birthstone is lapis lazuli. Sapphire was formalized as September's official stone in 1912 by the American National Association of Jewelers and is by far the most widely recognized September birthstone today. Lapis lazuli was September's stone in older European tradition, with a documented use stretching back over 6,000 years to ancient Egyptian and Mesopotamian civilizations. Both remain valid; modern American tradition uses sapphire, while lapis lazuli persists as the historical alternative in some Old World and esoteric traditions.
Each stone offers something genuinely different. Sapphire is exceptionally hard at Mohs 9 — second only to diamond on the scratch-resistance scale — traditionally blue but occurring in nearly every color except red, and one of the most prestigious gemstones in royal and ceremonial jewelry. Princess Diana's blue sapphire engagement ring, now worn by Catherine, Princess of Wales, made sapphire the most famous engagement ring stone of the modern era. Lapis lazuli is a deep ultramarine-blue metamorphic rock flecked with golden pyrite, softer at Mohs 5–6, and historically the most expensive blue pigment in human history — ground into ultramarine paint, lapis was once worth more than gold by weight and reserved for the Virgin Mary's robes in Renaissance religious painting.
This guide covers both September birthstones in depth, the Virgo and Libra zodiac connections, the color spectrum within sapphire itself, lapis lazuli's extraordinary 6,000-year history, and a six-question framework to help you choose between the two stones for a gift, engagement ring, or meaningful personal piece. Aquamarise's sapphire engagement ring collection centers blue sapphire designs; for the complete sapphire engagement ring buying guide, see our Sapphire Engagement Rings Complete Buying Guide.
September has the cleanest birthstone choice of any month with multiple stones. Unlike August's three-way decision between peridot, sardonyx, and spinel, or June's complicated overlap of pearl, alexandrite, and moonstone, September gives you two genuinely distinct options: sapphire as the modern primary, and lapis lazuli as the historical traditional. Sapphire is the choice most people land on by default — for good reason. It is one of the most prestigious gemstones in human history, exceptionally durable, and carries arguably the most famous engagement ring lineage of the modern era. But lapis lazuli has its own quiet authority, a 6,000-year history that predates almost every other named gemstone tradition and includes uses far beyond jewelry — including its role as the most valuable paint pigment in art history.
As a working jeweler, I have four conversations about September birthstones more often than any other. First: "Isn't September just sapphire?" The honest answer is that sapphire is the modern official stone, but lapis lazuli is the older traditional one, and both have legitimate claims to the month. Second: "What color is sapphire really?" Most people assume sapphire is only blue — and the famous September sapphires are deep, velvety blue — but sapphire actually occurs in every color except red, including pink, yellow, green, purple, and even colorless. Third: "What's the difference between sapphire and blue topaz?" These are entirely different minerals despite sharing a similar blue color — sapphire is corundum at Mohs 9, blue topaz is the mineral topaz at Mohs 8, and almost all commercial blue topaz is heat-treated to produce its color. Fourth: "Which should I choose?" This depends on whether you are buying an engagement ring or daily-wear piece (where sapphire's exceptional durability makes it the practical choice) or a meaningful keepsake gift (where lapis lazuli's ancient history may resonate more).
This guide answers all four questions in depth, plus the dozen others that come up in real September birthstone conversations. We will cover the modern-vs-traditional birthstone split and why September has two stones, sapphire's basic gemology and meaning at the level needed to choose between the two September stones, lapis lazuli's extraordinary 6,000-year history through Egyptian funerary use, Mesopotamian trade routes, and Renaissance ultramarine pigment, the Virgo and Libra zodiac connections that span the month, and a six-question framework for choosing between sapphire and lapis lazuli. For the complete sapphire engagement ring buying guide — including detailed coverage of color grades, settings, metals, sources, treatments, and price tiers — see our dedicated Sapphire Engagement Rings Complete Buying Guide. This September pillar focuses on the birthstone tradition itself.
Sapphire and lapis lazuli were both, at different points in history, considered the same stone. The Latin word sapphirus in classical and medieval texts most often referred to lapis lazuli, not the corundum gemstone we now call sapphire. Many references to "sapphire" in the Bible and medieval Christian texts are now understood by gemologists to mean lapis lazuli. September's two birthstones are not just historical alternatives — they are, in a real sense, the same ancient stone tradition split into two by the development of modern mineralogy.
Why September Has Two Birthstones — Modern Sapphire and Traditional Lapis Lazuli
September's modern-and-traditional split reflects how the birthstone list was formalized in 1912 — and what older traditions it replaced.
Birthstone tradition has been layered across thousands of years, and September's two stones reflect two different eras of that tradition. Lapis lazuli was September's stone in older European tradition, with a documented use stretching back to ancient Egyptian and Mesopotamian civilizations over 6,000 years ago. According to the GIA, lapis was mined in Afghanistan from the Sar-e-Sang mines starting around 4,000 BC, and lapis jewelry has been recovered from royal Egyptian tombs including Tutankhamun's. The historical European traditional birthstone lists used lapis lazuli as September's stone for centuries before the modern American list existed.
The modern birthstone list was created in 1912 by the American National Association of Jewelers (now Jewelers of America), which designated sapphire as September's official birthstone. Sapphire had been growing in popularity throughout the Victorian and Edwardian eras as a prestige gemstone — already heavily used in royal jewelry across Europe — and its exceptional durability and color range made it a natural choice for the formalized American list. Sapphire's selection effectively displaced lapis lazuli in modern American birthstone tradition, though lapis remains the historical alternative in some Old World and esoteric birthstone lists.
Unlike August (which gained spinel in 2016) or December (which gained tanzanite in 2002), September has not been amended since the 1912 formalization. Sapphire remains the single modern birthstone, with lapis lazuli persisting only in traditional and historical contexts. For most buyers in 2026 — including someone shopping for a September 1, September 15, or September 30 birthday — "the September birthstone" means sapphire by default. But if you are drawn to ancient symbolism, the European traditional list, or you simply want a less-expected September stone, lapis lazuli is a genuinely legitimate alternative with its own rich lineage.
The modern birthstone list maintained by Jewelers of America and the American Gem Trade Association is the most widely recognized authority on official birthstones in the United States. The GIA, American Gem Society, and major jewelry retailers all reference this list. Other birthstone traditions exist — including the older European traditional birthstone list (where lapis lazuli was September's stone), mystical Tibetan birthstones, Ayurvedic birthstones, and zodiac-based gemstones — and some of these assign different stones to September. When this guide refers to "modern" September birthstone, we mean sapphire per the 1912 American list; when we refer to "traditional," we mean lapis lazuli per older European tradition.
September's Two Birthstones — At a Glance
Each stone differs dramatically in mineral type, hardness, price, and symbolic meaning. Here is the side-by-side overview.
The gem variety of the mineral corundum, available in nearly every color except red (red corundum is called ruby). Blue sapphire is the most famous and the iconic September stone — a deep, velvety blue produced by traces of iron and titanium in the crystal. According to the GIA, sapphire has been associated with royalty and wisdom for centuries, worn by priests as symbols of heaven and by royalty as tokens of faithful love. At Mohs 9, sapphire is the second-hardest natural gemstone — second only to diamond on the scratch-resistance scale — making it exceptionally well-suited to daily-wear jewelry and engagement rings.
A deep blue metamorphic rock — not a single mineral but a combination of lazurite (which provides the blue), calcite (white veining), and pyrite (the characteristic golden flecks). Mined from the Sar-e-Sang mines of Afghanistan for over 6,000 years, lapis has been treasured by every major ancient civilization including Egyptian, Mesopotamian, Persian, Greek, Roman, and Renaissance European. Lapis was the source of ultramarine pigment — historically the most expensive paint color in the world, worth more than gold by weight. At Mohs 5–6, lapis is significantly softer than sapphire and is better suited to occasional-wear pieces than daily engagement rings.
| Property | Sapphire (modern) | Lapis Lazuli (traditional) |
|---|---|---|
| Added to September | 1912 (formalized) | Ancient tradition (6,000+ yrs) |
| Color | Blue (most iconic), also pink, yellow, green, purple, colorless | Deep ultramarine with gold pyrite flecks |
| Mohs hardness (scratch resistance) | 9 | 5–6 |
| Mineral type | Corundum (aluminum oxide) | Metamorphic rock (lazurite + calcite + pyrite) |
| Symbolism | Wisdom, truth, loyalty, faithful love | Wisdom, inner vision, royalty, the night sky |
| Primary source | Sri Lanka, Madagascar, Kashmir, Australia, Montana | Sar-e-Sang mines, Afghanistan (historic and modern) |
| Daily wear suitability | Excellent | Occasional wear; necklaces and earrings |
| Famous historical case | Princess Diana's blue sapphire engagement ring | Tutankhamun's funerary mask |
Sapphire — The Modern September Birthstone
September's primary birthstone — the gem variety of corundum, the second-hardest natural gemstone, and arguably the most prestigious colored stone in royal jewelry history.
Sapphire is the gem-quality variety of corundum, a crystalline form of aluminum oxide (Al₂O₃). Pure corundum is colorless; trace elements produce sapphire's range of colors. Blue sapphire — September's iconic color — gets its hue from traces of iron and titanium in the crystal structure. Other trace elements produce the full sapphire spectrum: chromium for pink, beryllium for orange and yellow, vanadium for purple, and various combinations for green and the rare padparadscha (pink-orange). Red corundum is called ruby; all other colors of corundum are sapphire.
Sapphire is one of the four traditional "precious" gemstones alongside diamond, ruby, and emerald — a designation that reflects sapphire's centuries-long association with prestige, royalty, and ceremonial use. According to gemological tradition documented by the GIA, ancient Persians believed the earth rested on a giant sapphire whose reflection colored the sky blue. Medieval European clergy wore sapphire to symbolize heaven, royalty wore sapphire as tokens of faithful love and divine favor, and the British Crown Jewels include several historic sapphires of national significance. Sapphire is also the traditional 45th wedding anniversary gemstone — making it meaningful for both engagement and milestone-anniversary contexts.
For September birthstone purposes, sapphire's exceptional durability is one of its strongest practical qualities. At Mohs 9, sapphire is harder than every gemstone except diamond on the scratch-resistance scale — meaning sapphire engagement rings, daily-wear necklaces, and earrings resist surface scratches better than virtually any other colored stone. Note that Mohs hardness measures scratch resistance rather than impact toughness; even sapphire can chip from sharp impact in vulnerable settings, so setting choice still matters for daily-wear pieces. But across the practical range of activities most engagement rings encounter, sapphire's combination of hardness and reasonable toughness makes it one of the most durable colored gemstones available.
This guide covers sapphire at the level needed to choose between September's two birthstones. For the complete sapphire engagement ring buying experience — including detailed coverage of sapphire color grades, setting recommendations, metal pairings, the full color spectrum (blue, pink, yellow, padparadscha), buying considerations, treatment disclosures, and what to know before purchasing — see our dedicated Sapphire Engagement Rings Complete Buying Guide. Aquamarise sapphire pieces are available now in the sapphire engagement ring collection and the broader sapphire jewelry collection.
Many September birthstone buyers ask about the difference between sapphire and blue topaz, since both stones share a similar blue color. They are entirely different minerals. Sapphire is corundum at Mohs 9 — naturally occurring in deep velvety blue from trace iron and titanium, and one of the most prestigious gemstones in royal jewelry history. Blue topaz is the mineral topaz at Mohs 8 — and critically, almost all commercial blue topaz is colorless topaz that has been heat-treated and irradiated to produce its blue color (natural blue topaz exists but is extremely rare). Sapphire is typically priced at $1,000–$10,000+ per carat for fine specimens; blue topaz typically runs $20–$50 per carat. For September birthstone purposes, sapphire is the correct stone; blue topaz is November's birthstone (alongside citrine) and a different gemstone entirely.
Lapis Lazuli — September's Traditional Birthstone
The older traditional September stone, with 6,000 years of continuous use across Egyptian, Mesopotamian, Persian, Greek, Roman, and Renaissance European cultures.
Lapis lazuli is fundamentally different from sapphire — not a single mineral but a metamorphic rock composed of multiple minerals. The deep blue color comes from lazurite, which makes up 25–40% of fine lapis. The characteristic white veining comes from calcite, and the famous golden flecks scattered throughout are pyrite. The combination produces a distinctly different blue from sapphire — deeper, more ultramarine, with the warm metallic glints of pyrite giving the stone its night-sky character. The finest lapis has minimal calcite veining and just enough pyrite to provide the signature gold-fleck effect without overwhelming the blue.
Lapis has been mined from the Sar-e-Sang mines in the Badakhshan province of Afghanistan for over 6,000 years — making it one of the longest continuously-mined gemstone sources in human history. The GIA documents lapis use in ancient Egyptian jewelry (including Tutankhamun's funerary mask, completed around 1323 BC), Sumerian and Babylonian royal jewelry from as early as 3,000 BC, Persian carvings, and ceremonial objects across nearly every major ancient civilization. The lapis trade routes from Afghanistan to the Mediterranean and Egypt are among the oldest documented gemstone trade networks in history, predating even the Silk Road by millennia.
In ancient Egypt specifically, lapis lazuli held religious and royal significance beyond ordinary jewelry. Egyptian texts associate lapis with the night sky and with the gods — particularly Maat, the goddess of truth, who was often depicted wearing lapis. Royal funerary masks combined lapis with gold for the most sacred burials, including not only Tutankhamun's but also those of earlier and later pharaohs. Powdered lapis was used in eye makeup, particularly the iconic dark blue eye paint worn by Egyptian royalty. The Book of the Dead references lapis lazuli in passages relating to the afterlife and divine judgment, establishing the stone's connection to wisdom and truth that persists in symbolic tradition today.
Beyond jewelry, lapis lazuli's most extraordinary historical use was as the source of ultramarine pigment. Ground into powder and refined through a complex process that could take weeks, lapis produced the most expensive paint color in the world — historically worth more than gold by weight. The name ultramarine comes from the Latin ultramarinus, meaning "beyond the sea" — referring to lapis having to be imported across the Mediterranean from Afghanistan. Renaissance painters used ultramarine sparingly, often reserved for the most sacred subjects: the robes of the Virgin Mary in religious paintings were almost exclusively painted in ultramarine to signify divine importance. Michelangelo famously left some sections of his late paintings unfinished because he could not afford enough ultramarine. Vermeer used ultramarine throughout "Girl with a Pearl Earring" — most visibly in the blue turban that gives the painting its iconic look. The pigment's expense led to centuries of attempts to synthesize it, until synthetic ultramarine was finally developed in 1828 by French chemist Jean-Baptiste Guimet, ending lapis's monopoly on the color blue in fine art.
Lapis lazuli's Mohs hardness of 5–6 places it well below sapphire and most engagement-ring-suitable gemstones. For comparison: lapis is similar in hardness to turquoise, opal, and moonstone — all stones that work beautifully for necklaces, earrings, brooches, and occasional-wear rings, but that are generally not recommended for daily-wear engagement rings or rings worn in high-impact activities. Lapis is also sensitive to chemicals, heat, and prolonged water exposure — it should not be worn during gardening, exercise, or swimming, and should be cleaned with a soft cloth only (no ultrasonic or steam cleaners). For September birthstone gifts that will be worn occasionally and treasured rather than worn daily through every activity, lapis lazuli is genuinely fine. For an engagement ring meant for decades of daily wear, sapphire is the practical choice.
One of the more interesting facts in September's birthstone history is that the words "sapphire" and "lapis lazuli" referred to the same stone in many ancient and medieval contexts. The Latin sapphirus in classical Roman and medieval Christian texts almost always meant lapis lazuli, not the corundum we now call sapphire. References to "sapphire" in many Bible translations are now understood by gemologists to mean lapis lazuli — including the famous Exodus passage describing the throne of God resting on "a paved work of a sapphire stone." The two stones were not reliably distinguished until medieval-to-Renaissance gemological knowledge developed the ability to separate them based on mineral composition. This means September's modern-and-traditional birthstone split is, in a sense, two halves of the same ancient stone tradition — separated only by the development of modern mineralogy.
September Birthstones and the Zodiac — Virgo and Libra Connections
September spans two zodiac signs — Virgo (August 23 – September 22) and Libra (September 23 – October 22). Each sign aligns with different September birthstone qualities.
Virgo (August 23 – September 22) is the mutable-earth sign associated with analytical thinking, attention to detail, service, clarity of mind, and grounded practical wisdom. Virgos born in late August overlap with August birthstones (see our August Birthstone Guide); Virgos born in September align with the September stones. The astrological alignment is strongest for sapphire — the symbolic vocabulary of wisdom, truth, clarity, and faithful service maps directly to Virgo's analytical and service-oriented archetype. Sapphire's deep blue color and association with mental clarity have made it a favorite stone for thinkers, writers, and detail-oriented professionals for centuries. Lapis lazuli, with its associations to inner vision, intellectual insight, and the ancient Egyptian "third eye" symbolism, is another strong Virgo match historically.
Libra (September 23 – October 22) is the cardinal-air sign associated with balance, justice, partnership, beauty, and harmonious relationships. Libras born in September claim the September birthstones; Libras born in October align with October's birthstones (opal and tourmaline). Sapphire resonates particularly well with Libra through its blue color (associated with Libra's air element) and its symbolism of balance, justice, and harmonious partnership — qualities at the core of the Libra archetype. Sapphire's role as the traditional 45th wedding anniversary gemstone makes it especially meaningful for Libra-born partners in milestone-anniversary contexts, where Libra's partnership orientation aligns with the anniversary tradition. Lapis lazuli, with its ancient associations to balance and the night sky, also resonates with Libra's reflective, beauty-loving character.
For Virgo birthday gifts (September 1 through September 22), sapphire is the most popular and most archetypally-aligned choice. For Libra birthday gifts (September 23 through September 30), sapphire remains the default but Libras born in October may prefer to wait until October birthstones (opal and tourmaline). Lapis lazuli works well for both signs as a more distinctive, ancient-tradition alternative — particularly for the historically inclined Virgo or the beauty-conscious Libra.
Choose-Your-September-Stone Framework — A Six-Question Decision Guide
September's two birthstones suit different situations. These six questions clarify which is right for your specific case.
What will the jewelry be worn for?
This is the single most consequential question. For engagement rings or any daily-wear piece, sapphire is the correct choice — its Mohs 9 scratch resistance makes it exceptionally suited to decades of daily wear, while lapis lazuli at Mohs 5–6 is too soft for daily impact. For occasional-wear necklaces, earrings, pendants, or special-occasion rings, either stone works beautifully — and lapis lazuli's distinctive gold-flecked ultramarine offers something visually unique. For ceremonial gifts and keepsake jewelry meant to be treasured rather than worn through every activity, both stones work, with the choice coming down to symbolic preference.
Do you want modern or traditional symbolism?
If you want the official modern birthstone with the prestige of royal sapphire jewelry and the most universally recognized September association, choose sapphire. If you are drawn to older traditional symbolism, the Egyptian and Mesopotamian ancient lineage, the Renaissance ultramarine pigment history, or the European traditional birthstone list, choose lapis lazuli. Some buyers find sapphire's modern royal association meaningful; others find lapis lazuli's 6,000-year ancient continuity more compelling. Both are legitimate September birthstones with different symbolic weights.
What budget are you working with?
Sapphire spans an enormous price range — from accessible sterling silver pieces with smaller sapphires starting around $100, to mid-range solid gold sapphire engagement rings at $800–$3,000, to premium Kashmir or Burmese sapphires that can exceed $30,000 per carat for exceptional specimens. Lapis lazuli is generally more accessible than sapphire — fine lapis pieces in sterling silver typically range from $50–$300, and even premium lapis jewelry in solid gold remains affordable relative to most colored gemstones. For maximum visual impact at modest budgets, lapis offers more carat weight per dollar; for long-term value and prestige, sapphire's combination of durability and gemological standing makes it the stronger investment.
Which color speaks to you?
Sapphire and lapis lazuli are both blue, but they are dramatically different blues. Blue sapphire is transparent or translucent — a deep, velvety, often cornflower-blue stone with the optical depth and brilliance of fine crystal. The light moves through the stone. Lapis lazuli is opaque — a flat, saturated ultramarine with golden pyrite flecks scattered through it like stars in a night sky. The two stones create completely different aesthetic effects: sapphire reads as luminous and refined, lapis reads as deep and earthy. If "fancy sapphire" colors interest you (pink, yellow, padparadscha), sapphire offers options lapis cannot match. If you specifically love that distinctive ultramarine-with-gold aesthetic that no other gemstone provides, lapis is the answer.
Does the recipient prefer recognizable or distinctive?
Sapphire is the universally recognized September birthstone — anyone familiar with birthstones will identify it immediately, and the Princess Diana / Catherine, Princess of Wales connection gives sapphire an additional layer of cultural recognition. This works well for buyers who want their birthstone choice to be unmistakable and traditional. Lapis lazuli is the distinctive alternative — most people will not immediately identify it as a September birthstone, requiring a brief explanation when worn. For recipients who want something uncommon and have the story to tell ("this is the original ancient September birthstone, mined from the same Afghan mines that supplied Tutankhamun"), lapis offers exactly that.
Is this an engagement ring or a keepsake gift?
The final clarifier. For engagement rings, sapphire is essentially the only practical September birthstone choice given the daily-wear durability requirement — and for the complete sapphire engagement ring buying experience, see our dedicated Sapphire Engagement Rings Complete Buying Guide. For birthday gifts, anniversary pieces, milestone presents, and ceremonial jewelry, either stone works — and the choice can prioritize symbolic meaning, aesthetic preference, and budget over pure durability. Lapis lazuli pendants, earrings, and statement pieces make particularly meaningful September birthday gifts when the recipient appreciates ancient history and distinctive aesthetics.
September Birthstone Jewelry at Aquamarise — Sapphire Engagement Rings and Birthstone Pieces
Aquamarise's September birthstone offerings center sapphire across engagement rings, broader sapphire jewelry, and birthstone-themed pieces.
Aquamarise's standard collections center sapphire for September birthstone pieces, reflecting sapphire's dominant market position and its superior durability for daily-wear jewelry. Lapis lazuli pieces are available through Aquamarise's custom engagement rings and bespoke design program. For buyers specifically seeking lapis lazuli — typically for ceremonial September birthday gifts, ancient-tradition keepsake pieces, or necklaces and earrings where lapis's softer hardness is appropriate — custom commissions allow setting selection around an individually chosen stone.
Frequently Asked Questions About September Birthstones
Ten questions answered — covering both September birthstones, the zodiac connections, and the practical considerations for choosing between them.
What is the September birthstone?
Sapphire is the modern September birthstone, formalized by the American National Association of Jewelers in 1912. Lapis lazuli was the traditional September birthstone in older European tradition, dating back to ancient Egyptian and Mesopotamian use over 6,000 years ago. Today, sapphire is by far the most widely recognized September stone, while lapis lazuli remains the historical alternative. Whether you're born September 1, September 15, or September 30, both birthstones apply to your birth month — though Virgos born September 1–22 and Libras born September 23–30 may align with slightly different symbolic frameworks. Browse the sapphire engagement ring collection for designs centered on September's modern birthstone.
What color is the September birthstone?
The most iconic September birthstone color is deep blue — the velvety, royal-blue sapphire that most people associate with the month. However, sapphire actually occurs in nearly every color except red (red corundum is called ruby, not sapphire) — including pink, yellow, green, purple, orange, and colorless. These non-blue sapphires are called fancy sapphires. Lapis lazuli, September's traditional birthstone, is a deep ultramarine blue often flecked with golden pyrite inclusions — a distinctly different blue from sapphire's transparent gem character. The two stones create completely different aesthetic effects: sapphire reads as luminous and refined, lapis reads as deep and earthy.
What does the September birthstone mean?
Sapphire's symbolism centers on wisdom, truth, loyalty, and divine favor. According to the GIA, gemological tradition holds that ancient Persians believed the earth rested on a giant sapphire whose reflection colored the sky blue. Medieval clergy wore sapphire to symbolize heaven, and royalty have worn sapphire for centuries to symbolize sincerity and faithful love. Lapis lazuli, the traditional September birthstone, has its own symbolic tradition centered on wisdom, truth, and inner vision — ancient Egyptians associated lapis with the night sky and used it in funerary masks, including Tutankhamun's. Both stones share a thread of wisdom and truth symbolism, making September birthstones particularly meaningful for milestone gifts and engagement jewelry.
What is the Virgo birthstone?
Virgo (August 23 – September 22) overlaps with both August birthstones (peridot, sardonyx, spinel) and September birthstones (sapphire, lapis lazuli). Virgos born in late August typically claim peridot as their primary birthstone, while Virgos born in September align with sapphire. Sapphire's symbolism — wisdom, truth, clarity, faithful service — resonates particularly well with Virgo's analytical, detail-oriented, service-oriented archetype. Lapis lazuli, with its associations to inner vision and clear thinking, is another strong Virgo match historically. For deeper Virgo birthstone context including the August half of the sign, see our August Birthstone Guide.
What is the Libra birthstone?
Libra (September 23 – October 22) overlaps with both September (sapphire, lapis lazuli) and October (opal, tourmaline) birthstones. Libras born in September typically claim sapphire as their primary birthstone; Libras born in October align with opal or tourmaline. Sapphire's blue color is closely associated with Libra's air element, and the stone's symbolism of balance, justice, and harmonious relationships aligns directly with Libra's scales archetype. Sapphire is also the traditional 45th wedding anniversary gemstone — making it particularly meaningful for Libra-born partners in milestone-anniversary contexts.
Why does September have two birthstones?
September has both a modern birthstone (sapphire) and a traditional birthstone (lapis lazuli) because birthstone tradition has been built across multiple eras. Lapis lazuli was September's stone in older European tradition, rooted in ancient Egyptian and Mesopotamian use stretching back over 6,000 years. When the American National Association of Jewelers formalized the modern birthstone list in 1912, sapphire was designated as September's official stone. Both remain valid; modern American tradition uses sapphire as the primary September stone, while lapis lazuli is the historical and Old World alternative.
Is sapphire only blue?
No — sapphire occurs in nearly every color except red. Sapphire and ruby are both varieties of the mineral corundum (aluminum oxide); red corundum is called ruby, while all other colors of corundum are called sapphire. Blue sapphire is the most famous variety, but sapphire also occurs in pink, yellow, green, purple, orange, and colorless forms. The most prized non-blue sapphires are "padparadscha" sapphires — a rare pink-orange color named after the lotus flower. Pink, yellow, and "fancy" sapphires are increasingly popular for engagement rings as alternatives to traditional blue. For complete coverage of sapphire colors and engagement ring options, see our Sapphire Engagement Rings Complete Buying Guide.
What is the difference between sapphire and blue topaz?
Sapphire and blue topaz are entirely different minerals despite sharing a similar blue color. Sapphire is corundum (Mohs 9), one of the hardest natural gemstones — exceptionally suited to daily-wear engagement rings. Blue topaz is the mineral topaz (Mohs 8), still durable but less so than sapphire, and most commercially available blue topaz is colorless topaz that has been heat-treated and irradiated to produce its blue color. Sapphire's blue is naturally occurring from trace iron and titanium. Sapphire is also significantly more expensive — fine blue sapphire can run $1,000–$10,000+ per carat, while blue topaz typically costs $20–$50 per carat. For September birthstone purposes, sapphire is the correct choice; blue topaz is November's birthstone (alongside citrine) and a different stone entirely.
What is lapis lazuli?
Lapis lazuli is a deep blue metamorphic rock — not a single mineral but a combination of lazurite (which provides the blue color), calcite (white veining), and pyrite (the characteristic golden flecks). It has been mined for over 6,000 years, primarily in the Sar-e-Sang mines of Afghanistan, which have supplied lapis to civilizations from ancient Egypt and Mesopotamia through Renaissance Europe. Lapis was ground into ultramarine pigment — the most expensive paint color in the world for centuries, used by Renaissance masters including Michelangelo and Vermeer. Lapis lazuli's Mohs hardness is 5–6, softer than sapphire, making it more suited to necklaces, earrings, and occasional-wear pieces than daily-wear engagement rings.
Which September birthstone should I choose?
Choose sapphire if you want the modern primary September birthstone, want exceptional scratch resistance (Mohs 9 — second only to diamond), or are buying an engagement ring or daily-wear piece. Sapphire is the default for most contemporary September birthstone gifts. Choose lapis lazuli if you want the older traditional September birthstone with 6,000+ years of history, prefer the distinctive ultramarine blue with golden pyrite flecks, or want a more affordable September birthstone for occasional wear (necklaces, earrings, pendants). For an engagement ring or daily-wear piece, sapphire is the practical choice; for ceremonial gifts and meaningful keepsake jewelry, either works beautifully. For the complete sapphire engagement ring buying guide, see our Sapphire Engagement Rings Complete Buying Guide.
Two Birthstones, One September — Find the One That Speaks to Yours.
Aquamarise's September birthstone pieces center sapphire — the modern primary stone, with exceptional Mohs 9 scratch resistance for engagement rings and daily-wear jewelry.
Lapis lazuli pieces available through custom commissions. Each piece backed by our lifetime warranty on workmanship.
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