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Unique Engagement Rings

Unique engagement rings built around unusual gemstones, unconventional cuts and distinctive settings — moss agate, salt-and-pepper diamonds, alexandrite and fantasy cuts in nature-inspired, gothic and celestial designs.

Ava Emerald Cut Morganite Ring in 14K Rose Gold Vermeil

Ava Emerald Cut Morganite Ring14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

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Belle Cushion Cut Aquamarine Ring in Sterling Silver by Aquamarise featuring a 2.5 carat cushion-cut aquamarine with diamond halo and sterling silver band from March Birthstone Jewelry collections.

Belle Cushion Cut Aquamarine RingSterling Silver

Regular price $160 $135 (-16%)

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Heart Alexandrite Promise Ring in Sterling Silver by Aquamarise, featuring a heart-cut color-changing alexandrite with accent stones
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Heart Alexandrite Promise RingSterling Silver

Regular price $165 $132 (-20%)

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Art Deco Teal Sapphire Engagement Ring in Sterling Silver by Aquamarise, featuring a square teal sapphire center with tapered baguette white gemstones on a polished silver band.
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Art Deco Teal Sapphire Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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per 

Elegant ring with a red gemstone and pearls on a soft purple background

Arwen Marquise Cut Red Garnet & Pearl RingBlack Ruthenium

Regular price $160 $135 (-16%)

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Natural Herkimer Diamond Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a hexagon-cut natural Herkimer diamond center stone flanked by triangular sparkling side stones set on a delicate diamond-accented band, part of Solid Gold Engagement Rings and Nature-Inspired Engagement Rings collections.
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Hexagon Natural Herkimer Diamond RingSterling Silver

Regular price $160 $128 (-20%)

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Teardrop White Sapphire Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a 2-carat pear-cut lab-grown white sapphire center with marquise-cut simulated diamonds arranged in a floral design on a rose gold vermeil band, part of Rose Gold Vermeil Rings, September Birthstone Jewelry, and Engagement Rings for Women collections.
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Teardrop White Sapphire Ring14K Rose Gold Vermeil

Regular price $155 $124 (-20%)

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per 

Oval Cut Alexandrite Engagement Ring in Sterling Silver by Aquamarise, featuring a color-shifting teal to violet oval alexandrite center stone, accented with pear-shaped clear gemstones on a polished sterling silver band, perfect for Sterling Silver Rings, June Birthstone Jewelry, Engagement Rings for Women, and Unique Engagement Rings collections.

Oval Cut Alexandrite Engagement RingSterling Silver

Regular price $170 $145 (-15%)

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Borealis Tanzanite & Teal Sapphire Couples Ring Set (Mountain Range) by Aquamarise, showcasing a marquise-cut tanzanite flanked by teal sapphire heart accents and delicate diamond details, part of Matching Couples' Rings and September and December Birthstone Jewelry collections.

Elain Tanzanite & Teal Sapphire Fairy RingSterling Silver

Regular price $160 $135 (-16%)

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Natural Tanzanite Chevron Ring Set in 14K White Gold (two-piece) by Aquamarise Gold featuring a marquise-cut violet-blue tanzanite gemstone framed by a chevron-shaped band adorned with sparkling white diamonds, part of Solid Gold Engagement Rings and December Birthstone collections.

Marquise Tanzanite Ring SetSterling Silver

Regular price $175 $150 (-14%)

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Feyra Natural Amethyst & Diamond Ring in Sterling Silver by Aquamarise, close-up of the amethyst accents

Feyra Amethyst & Moissanite Engagement Ring Set14K White Gold

from $2,495

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Fireworks Cut Natural Red Garnet Leaf Engagement Ring in 14K White Gold showcasing a fiery oval red garnet centerpiece surrounded by delicate leaf and vine motifs accented with smaller garnets and sparkling diamonds from Aquamarise Gold.
Vintage Tanzanite Ring Set in 14K White Gold featuring a pear-shaped deep purple tanzanite center stone accented by a delicate white gold band with diamond details, crafted by Aquamarise Gold from the December Birthstone and Solid Gold Engagement Rings collections.
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Vintage Tanzanite Ring SetSterling Silver

Regular price $175 $140 (-20%)

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Evelyn Starry Night Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a pear-shaped deep blue gemstone and sparkling white diamond accents in a celestial-inspired design.

Evelyn Starry Night® Engagement Ring Set14K White Gold

from $2,195

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Skye Kite® Lab-Grown Emerald Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring a striking kite-cut emerald surrounded by smaller emeralds and diamonds in rose gold.
Moss Agate & Opalescent Sapphire Leaf Ring by Aquamarise

Moss Agate & Opalescent Sapphire Engagement Ring14K White Gold

from $1,885

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Green Fire Opal Leaf Engagement Ring in 14K Rose Gold Vermeil featuring a vibrant green fire opal center, opalescent side stones, and intricate leaf engraving by Aquamarise.
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Green Fire Opal Leaf Engagement Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Coffin Cut Blue Sapphire and Gold Leaf Couples Ring Set featuring a vibrant blue coffin-cut sapphire with black gemstone accents in gold by Aquamarise, perfect for matching couples rings.
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Coffin Cut Blue Sapphire & Black Onyx Engagement Ring14K Yellow Gold Vermeil

Regular price $175 $140 (-20%)

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Cordelia Oval Cut Art Deco Ruby Engagement Ring in 14K Solid Yellow Gold by Aquamarise Gold, featuring a vibrant ruby center surrounded by sparkling moissanite accents in a vintage style.
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Cordelia Oval Cut Lab-Grown Ruby Ring14K Yellow Gold Vermeil

Regular price $175 $140 (-20%)

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Kite Green Moss Agate Bezel Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring kite-shaped moss agate and sparkling diamonds in an elegant vintage-inspired design.
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Kite Green Moss Agate Bezel Ring Set14K Rose Gold Vermeil

Regular price $185 $148 (-20%)

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Iris Oval Morganite Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a peachy pink morganite center stone surrounded by a sparkling halo and pavé diamond band.
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Iris Oval Morganite RingSterling Silver

Regular price $160 $128 (-20%)

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Vintage Natural Moonstone Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a glowing cabochon moonstone with moissanite accents and intricate vintage-inspired band details.
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Natural Moonstone Ring14K Rose Gold Vermeil

Regular price $140 $112 (-20%)

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Dakota Natural Red Garnet Ring Set in 14K Rose Gold Vermeil by Aquamarise featuring a pear-shaped natural garnet center stone with marquise and round accent stones on a delicate rose gold band.
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Dakota Natural Red Garnet Ring Set14K Rose Gold Vermeil

Regular price $185 $148 (-20%)

Unit price
per 

Vintage Natural Tanzanite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold featuring an oval violet-blue tanzanite with moissanite accents on an intricately detailed rose gold band.
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Vintage Tanzanite Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

Unit price
per 

Radiant Cut Halo Alexandrite Ring in Sterling Silver by Aquamarise, featuring a vibrant purple-blue gemstone surrounded by sparkling silver pavé diamonds on the band and halo.

Radiant Cut Halo Alexandrite RingSterling Silver

Regular price $170 $145 (-15%)

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per 

Victoria Natural Citrine Ring in 14K White Gold by Aquamarise Gold featuring an oval citrine center surrounded by tapered baguette and round moissanite accents on a polished white gold band.
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Victoria Natural Citrine RingSterling Silver

Regular price $105 $84 (-20%)

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Victoria Black Onyx Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval black onyx center surrounded by tapered moissanite accents on a sleek white gold band.
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Victoria Black Onyx Engagement RingSterling Silver

Regular price $105 $84 (-20%)

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Natural Moonstone Teardrop Halo Ring in Sterling Silver featuring a pear-shaped moonstone surrounded by a halo of sparkling stones on a delicate sterling silver band.
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Natural Moonstone Teardrop Halo Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Tacori Alexandrite Ring- 14K Rose Gold Vermeil by Aquamarise featuring an oval color-shifting alexandrite center with marquise and round accents on a rose gold vermeil band.
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Tacori Alexandrite Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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per 

Lunette Teardrop Blue Sapphire Engagement Ring Set in 14K White Gold featuring a vivid teardrop blue sapphire surrounded by delicate diamond accents in an elegant white gold setting by Aquamarise Gold.
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Lunette Teardrop Blue Sapphire Engagement Ring SetSterling Silver

Regular price $170 $136 (-20%)

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Oval Cut Padparadscha Sapphire Ring in Sterling Silver by Aquamarise featuring a vibrant orange oval sapphire flanked by pear-shaped white accents on a polished sterling silver band.
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Oval Cut Padparadscha Sapphire RingSterling Silver

Regular price $160 $128 (-20%)

Unit price
per 

Vintage Alexandrite Ring in 14K Solid Rose Gold by Aquamarise Gold featuring a lab-grown alexandrite center surrounded by moissanite accents on an intricately detailed rose gold band.
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Vintage Alexandrite Engagement Ring14K Rose Gold Vermeil

Regular price $155 $124 (-20%)

Unit price
per 

Valentina Art Deco Emerald Ring in 14K Solid Yellow Gold by Aquamarise Gold, featuring a vivid oval emerald surrounded by intricate milgrain and sparkling diamonds in a vintage-inspired design.
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Valentina Art Deco Emerald Ring14K Yellow Gold Vermeil

Regular price $175 $140 (-20%)

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Diana Oval Aquamarine Engagement Ring in Sterling Silver by Aquamarise, featuring a vibrant oval aquamarine center surrounded by sparkling diamonds on a polished sterling silver band.
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Diana Oval Aquamarine Engagement RingSterling Silver

Regular price $160 $128 (-20%)

Unit price
per 

Princess Cut Alexandrite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a vibrant princess-cut alexandrite with diamond accents on a polished rose gold band.
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Princess Cut Alexandrite Engagement Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

Unit price
per 

Eva Black Rutilated Quartz Engagement Ring in 14K White Gold by Aquamarise Gold, featuring an oval black rutilated quartz center with marquise white gemstone accents on a delicate white gold band.
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Eva Black Rutilated Quartz RingSterling Silver

Regular price $160 $128 (-20%)

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Unique engagement rings start from a simple refusal: the ring should not look like the one in every mall showcase. Aquamarise® has built its entire catalog on that refusal — moss agate landscapes, salt-and-pepper diamonds, color-changing alexandrite and fantasy cuts set into nature-inspired, gothic and celestial designs, hand-finished in genuine 925 sterling silver (a 92.5% solid silver alloy), 14K gold vermeil and made-to-order solid gold.

What Actually Makes an Engagement Ring Unique

Three levers, usually pulled together. The stone: minerals with natural, non-repeating patterns mean no two rings can ever match. The cut: kite, hexagon, coffin and fantasy facet plans break from the round-brilliant default that dominates of every engagement rings sold. And the setting: branches, leaves, stars and antique lacework turn the mount itself into the statement rather than a frame that disappears. A ring only needs one of the three to stand out — the designs in this collection usually carry two or three at once, which is why they read as one-of-a-kind from across a room.

Entwined green moss agate ring in sterling silver by Aquamarise

Stones With Patterns That Never Repeat

Some minerals are physically incapable of sameness. Moss agate suspends green dendritic inclusions in translucent chalcedony, so every stone carries its own miniature forest — the reason moss agate engagement rings became the signature of the whole unusual-ring movement. Salt-and-pepper diamonds invert the clarity rules: their black and white inclusions are the point, a starfield sealed in carbon. Rutilated quartz threads golden needles through clear crystal, and opal rearranges its play-of-color with every degree the hand turns.

Then there are stones unique in behavior rather than pattern. Lab-created alexandrite reads teal in daylight and shifts toward purple-red under warm evening light — two rings in one, and the most conversation-starting stone we set; see the full alexandrite engagement rings range. If the goal is a ring nobody else can duplicate, begin with the material itself: choose a stone where nature, not a cutting factory, decides the design.

Unusual Cuts, from Kite to the Fantasy Facet Families

Cut is the fastest route to an unusual silhouette, because shape reads across a room before color does. Kite cut engagement rings angle four sharp sides into a geometric point that elongates the finger; hexagons bring honeycomb symmetry; coffin cuts anchor the gothic end of the spectrum; and fireworks fantasy cuts abandon standard facet charts entirely, carving curved grooves that scatter light in sprays no brilliant cut can produce. These cuts are rare in mass retail for a practical reason — they waste more rough stone and demand more skilled cutting — which is precisely why they look one-of-a-kind on the hand.

A practical note on wear: pointed cuts like the kite deserve settings with protected tips, and geometric step-style cuts show their clarity honestly. Every listing in this collection names its stone, cut and setting approach plainly, so you can judge the trade-offs before you buy rather than after.

Fireworks Cut Morganite & Moonstone Leaf Couples Ring Set by Aquamarise, featuring a sparkling pink morganite and moonstone with delicate leaf-inspired sterling silver bands.

Settings That Do the Talking

An unusual stone deserves a mount designed around it, not a generic four-prong head ordered from a parts catalog. Across this collection you will find branch and vine shanks that grow around the finger, leaf-cradled bezels that frame moss agate the way undergrowth frames a clearing, star-set shoulders and crescent profiles on the celestial designs, and blackened, sculptural silhouettes on the gothic side. Milgrain edges and hand-applied beadwork borrow from antique lacework where a vintage mood is wanted.

Details finish the job. Hidden accent stones under the gallery reward the wearer rather than the audience; asymmetric clusters let a couple design a ring that leans to one side on purpose; and complimentary engraving puts a private line of text inside the band. The result stays unique at every distance — silhouette from across the room, setting work at arm's length, and an inscription only two people know about.

Unique, Alternative or Non-Traditional: Choosing Your Lane

The terms overlap, but they lean differently, and we keep a dedicated page for each. Unique is about one-of-a-kind design — this page. Alternative engagement rings lean into replacing the diamond-solitaire convention altogether, non-traditional engagement rings collect the designs that ignore bridal convention entirely, and nature-inspired engagement rings gather every botanical and woodland design in one place. If one of those phrases sounds more like you, that page is the faster route to the right ring.

From One-of-a-Kind to Made-for-You

If the deciding factor is a stone's color rather than the rarity of its pattern, start at our gemstone engagement rings hub, which routes you to the right stone-specific collection. And when no listed ring is quite it, the custom ring builder turns a stone, a metal and an idea into a finished design. We hold a 4.9-star average across 38,000+ reviews collected on our store and on Etsy, where we have sold since 2016.

From the Blog

Fairy Engagement Rings: The Complete Guide to Fairycore Styles

Fairy Engagement Rings: The Complete Guide to Fairycore Styles

A complete guide to fairy engagement rings — fairycore, fae, woodland and elvish designs, the dreamiest stones and settings, durability, and how to design your own magical ring.

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Moss Agate Engagement Rings: The Complete Buyer's Guide

Moss Agate Engagement Rings: The Complete Buyer's Guide

A complete guide to moss agate engagement rings: what moss agate is, its meaning, durability, price, the best cuts and settings, and how to choose your one-of-a-kind stone.

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What Is a Salt and Pepper Diamond? The Complete Guide

What Is a Salt and Pepper Diamond? The Complete Guide

A real diamond that celebrates its flaws. What a salt and pepper diamond is, what causes its speckled look, how durable it is, the best cuts, why it costs less,...

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Green Engagement Rings: The Complete Guide to Every Green Gemstone

Green Engagement Rings: The Complete Guide to Every Green Gemstone

A complete guide to green engagement rings: every green gemstone explained with real Mohs hardness, honest per-carat pricing, and daily-wear durability, plus a comparison table and how to choose the...

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