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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.

Hidden Halo Cushion Cut Morganite Engagement Ring in 14K White Gold featuring a sparkling cushion-cut morganite center with diamond accents on a delicate white gold band by Aquamarise Gold.

Cushion Cut Morganite RingSterling Silver · Hidden Halo

Regular price $160 $135 (-16%)

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Iris Oval Lab-Grown Diamond Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold featuring a radiant oval diamond with halo and pavé accents on a polished white gold band.
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Iris Simulated Diamond Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Vintage Garnet Engagement Ring in 14K White Gold by Aquamarise Gold featuring deep red garnet center, moissanite accents, and intricate vintage-inspired white gold band design.
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Vintage Natural Red Garnet RingSterling Silver

Regular price $160 $128 (-20%)

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Valeria Marquise Halo Blue Sapphire Ring- Sterling Silver by Aquamarise, featuring a marquise royal blue sapphire surrounded by a halo of sparkling stones on a sterling silver band.
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Valeria Marquise Halo Blue Sapphire RingSterling Silver

Regular price $160 $128 (-20%)

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Flair Teardrop Alexandrite Ring in Sterling Silver by Aquamarise featuring a pear-shaped lab-grown alexandrite surrounded by sparkling accents in an elegant twisted vine design.
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Flair Teardrop Alexandrite RingSterling Silver

Regular price $170 $136 (-20%)

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Eva Natural London Blue Topaz Engagement Ring in 14K White Gold by Aquamarise Gold featuring a deep blue oval topaz with marquise-cut accent stones in an elegant vintage-inspired design.
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Eva London Blue Topaz Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Iris Oval London Blue Topaz Engagement Ring in 14K White Gold by Aquamarise Gold featuring a deep blue topaz center with a sparkling diamond halo and pavé band in a delicate setting.
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Iris Natural London Blue Topaz RingSterling Silver

Regular price $160 $128 (-20%)

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Astra Black Onyx Engagement Ring in Sterling Silver by Aquamarise, featuring an oval black onyx center surrounded by sparkling white stones on a polished sterling silver band.

Astra Black Onyx Engagement RingSterling Silver

Regular price $160 $135 (-16%)

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Princess Cut Lab Grown Ruby Engagement Ring in Sterling Silver by Aquamarise, featuring a radiant princess-cut 3 carat ruby with diamond accents on a rhodium-finished sterling silver band.
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Princess Cut Lab Grown Ruby Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Astra North Star Aquamarine Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring an oval aquamarine center surrounded by pear and round diamonds on a rose gold band.
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Astra North Star Aquamarine Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Vintage Ruby Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold featuring an oval ruby center with delicate diamond accents on an intricately detailed rose gold band.
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Vintage Ruby Engagement Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Celtic Knot Moss Agate Ring Set – Pear Moss Agate Engagement Ring in Rhodium Sterling Silver

Celtic Knot Moss Agate Ring SetSterling Silver

Regular price $175 $105 (-40%)

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Nesta Alexandrite & Paula Shell Couples Ring Set featuring a vibrant oval alexandrite center set in sterling silver with intricate milgrain detailing and sparkling white diamond accents, part of Aquamarise’s Matching Couples' Rings and June Birthstone Jewelry collections.

Nesta Vintage Alexandrite RingSterling Silver

Regular price $220 $185 (-16%)

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Midnight Blue Moissanite Crescent Moon Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a marquise-cut deep blue moissanite center stone accented with crescent-shaped details and small sparkling diamonds, part of Solid Gold Engagement Rings, Moissanite Engagement Rings, and Meaningful Jewelry Gifts collections.

Midnight Blue Moissanite Crescent Moon Engagement Ring SetSterling Silver

Regular price $225 $190 (-16%)

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Art Deco Pear Blue Sapphire Ring Set in Black Ruthenium by Aquamarise, featuring a pear-shaped blue sapphire and pavé white stones on a sleek black ruthenium band.
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Teardrop Blue Sapphire Engagement RingBlack Ruthenium · Hidden Halo

Regular price $135 $108 (-20%)

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Celtic Morganite Ring Set- 14K White Gold (Fantasy Cut) by Aquamarise Gold, featuring an oval fantasy-cut pink morganite center stone set in a delicate white gold band with intricate Celtic-inspired detailing and diamond accents, from Solid Gold Engagement Rings and Morganite Jewelry collections.
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Celtic Morganite Ring SetSterling Silver · Fantasy Cut

Regular price $175 $140 (-20%)

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Red Fire Opal & Black Onyx Ring in 14K Rose Gold Vermeil
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Red Fire Opal & Black Onyx Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Skye Kite® Cornflower Sapphire Kite Engagement Ring Set- 14K Solid Rose Gold

Skye Kite® Cornflower Sapphire Ring Set14K Rose Gold Vermeil

Regular price $185 $155 (-16%)

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per 

Art Deco Mosaic Morganite Couples Ring Set by Aquamarise featuring a rectangular pink morganite center stone surrounded by diamond accents on a sterling silver band.

Art Deco Morganite Engagement RingSterling Silver

Regular price $160 $135 (-16%)

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Emerald Cut Red Garnet Engagement Ring in 14K Solid Rose Gold (Hidden Halo) by Aquamarise Gold, featuring a vibrant garnet with diamond accents in a romantic, solid gold design.
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Natural Red Garnet Engagement Ring14K Rose Gold Vermeil

Regular price $170 $136 (-20%)

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Rutilated Quartz Ring in 14K Rose Gold Vermeil by Aquamarise featuring a pear-shaped rutilated quartz with sparkling pavé accents on a delicate rose gold vermeil band.
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Rutilated Quartz Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Turquoise Ring Set Rose Gold | Teardrop Vintage Engagement

Natural Turquoise Teardrop Stacking Ring Set14K Rose Gold Vermeil

Regular price $185 $155 (-16%)

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Pear Morganite Engagement Ring Set in 14K Rose Gold Vermeil by Aquamarise, featuring a pear-shaped morganite and sparkling white stones in a fantasy-inspired rose gold design.
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Pear Morganite Engagement Ring Set14K Rose Gold Vermeil

Regular price $185 $148 (-20%)

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Art Deco Aquamarine Engagement Ring in Solid 14K Rose Gold by Aquamarise Gold, featuring a cushion-cut aquamarine surrounded by vintage-inspired diamond accents on a delicate band.
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Vintage Cushion Cut Aquamarine Ring14k Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Minimalist Aquamarine Ring in Sterling Silver

Minimalist Aquamarine RingSterling Silver

Regular price $160 $135 (-16%)

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Aria Teardrop Alexandrite Stacking Ring Set in Sterling Silver
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Aria Teardrop Alexandrite Stacking Ring SetSterling Silver

Regular price $195 $156 (-20%)

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Lunette Teardrop Alexandrite Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold featuring a pear-shaped color-changing alexandrite with diamond accents in a rose gold band.

Lunette Vintage Teardrop Alexandrite Ring Set14K Rose Gold Vermeil

Regular price $200 $170 (-15%)

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Iris Natural Oval Peridot Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vivid oval peridot center surrounded by sparkling moissanite accents on a delicate white gold band.
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Iris Natural Peridot RingSterling Silver

Regular price $160 $128 (-20%)

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per 

Ava Oval Cut Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vibrant oval alexandrite center and pavé diamond accents on a polished white gold band.

Ava Oval Cut Alexandrite Engagement RingSterling Silver

Regular price $170 $145 (-15%)

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Ring with a large blue gemstone and smaller diamonds on a soft purple background
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Cushion Cut Alexandrite RingSterling Silver

Regular price $185 $148 (-20%)

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Avery Morganite Ring in 14K Rose Gold Vermeil featuring a round peachy-pink simulated morganite surrounded by a sparkling halo of white stones by Aquamarise.
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Avery Morganite Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Bella Natural Oval Citrine Ring Set in Sterling Silver by Aquamarise featuring a vibrant oval citrine center with sparkling accent stones in a modern, elegant sterling silver design.
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Bella Natural Oval Citrine Ring SetSterling Silver

Regular price $175 $140 (-20%)

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Victoria Vintage Morganite Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring an oval-cut natural morganite center surrounded by moissanite accents on a delicate rose gold band.
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Victoria Art Deco Morganite Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Ava Oval Cut Teal Sapphire Engagement Ring in Sterling Silver by Aquamarise featuring a vibrant teal-blue sapphire center with sparkling accent stones in a modern elegant setting.
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Ava Oval Cut Teal Sapphire Engagement RingSterling Silver

Regular price $160 $128 (-20%)

Unit price
per 

Celtic Knot Lab Grown Diamond Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a pear-shaped diamond with intricate Celtic knotwork and delicate diamond accents.

Celtic Knot White Sapphire Engagement Ring SetSterling Silver

Regular price $175 $150 (-14%)

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Starry Night™ Galaxy Engagement Ring | Blue Sandstone Ring
Made to Order

Starry Night® & Amethyst Galaxy Leaf RingSterling Silver

Regular price $205 $175 (-15%)

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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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Unique Engagement Rings FAQs

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“This ring was just perfect for my wife.”

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