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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.

Esme Lavender Moissanite Ring Engagement Ring in 14K White Gold by Aquamarise Gold showcasing a vibrant oval lavender moissanite center stone flanked by sparkling colorless moissanite accents and an intricate nature-inspired band design from the Solid Gold Moissanite Engagement Rings collection.

Esme Lavender Moissanite RingSterling Silver

Regular price $205 $175 (-15%)

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Teardrop Pink Sapphire Ring in Sterling Silver by Aquamarise featuring a vintage-inspired pear-shaped pink sapphire center surrounded by a halo of sparkling stones on a polished silver band, part of Sterling Silver Rings and September Birthstone Jewelry collections.
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Teardrop Pink Sapphire RingSterling Silver

Regular price $160 $128 (-20%)

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Ring with blue heart-shaped gemstone and pearls on a gradient background
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Briar Blue Sapphire and Pearl Engagement Ring SetBlack Ruthenium

Regular price $175 $140 (-20%)

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per 

Galaxy Salt and Pepper (Herkimer) Diamond & Meteorite Couples Ring Set by Aquamarise, featuring a rose gold band with an oval salt and pepper diamond centerpiece surrounded by leaf-shaped white gemstones, blending celestial charm with romantic elegance.

Salt and Pepper Diamond Leaf Ring Set14K Rose Gold Vermeil · Herkimer Diamond

Regular price $200 $170 (-15%)

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Feyra Starry Night & Amethyst Couples Ring Set featuring a pear-shaped dark blue sandstone center stone surrounded by vibrant amethyst gemstones set in a delicate rose gold band, crafted by Aquamarise for Matching Couples' Rings and February Birthstone collections.

Feyra Starry Night® & Amethyst Ring Set14K Solid Rose Gold

from $2,495

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Skye Kite® Peacock Fire Opal & Emerald Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold featuring a vibrant kite-shaped opal and sparkling emeralds in a unique rose gold setting.
Starry Night Engagement Ring Set in 14K Solid Yellow Gold by Aquamarise Gold, featuring a pear-shaped deep blue gemstone with sparkling white diamond accents on polished yellow gold bands.

Starry Night® Engagement Ring Set14K Solid Yellow Gold

from $2,025

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Starry Night Coffin Kite Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring deep blue coffin kite gemstones with sparkling diamond accents in a celestial design.
Rose gold ring with a blue opal stone and diamond accents on a white background

Vintage Blue Fire Opal Ring14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

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Toi Et Moi Morganite and Moissanite Ring- 14K Solid Rose Gold by Aquamarise Gold featuring an emerald-cut morganite and a pear-shaped moissanite on a delicate rose gold band.
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Morganite and Simulated Diamond Toi Et Moi Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Vintage Ruby Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a deep red ruby in an intricate rose gold setting with a twisted band from the Rose Gold Vermeil Rings collection.
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Dainty Vintage Ruby Engagement Ring14K Rose Gold Vermeil

Regular price $170 $136 (-20%)

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Amy Rutilated Quartz & Black Onyx Ring Set in 14K Rose Gold Vermeil by Aquamarise, featuring pear-shaped rutilated quartz, black onyx stones, and pavé diamonds on elegant rose gold bands.
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Amy Rutilated Quartz & Black Onyx Ring Set14K Rose Gold Vermeil

Regular price $200 $160 (-20%)

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Simulated Diamond Vintage Engagement Ring in Sterling Silver by Aquamarise featuring an Art Deco-inspired cushion-cut simulated diamond center with intricate vintage detailing and pavé accents.
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Simulated Diamond Vintage Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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per 

Valentina Art Deco Lab-Grown Ruby Engagement Ring in 14K White Gold by Aquamarise Gold, featuring an oval lab-grown ruby center with a diamond halo and intricate white gold band.
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Valentina Art Deco Ruby Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Vintage Teardrop Alexandrite Ring in Sterling Silver by Aquamarise, featuring a pear-shaped color-changing alexandrite center with a pavé diamond halo and detailed sterling silver band.
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Vintage Teardrop Alexandrite RingSterling Silver

Regular price $170 $136 (-20%)

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Iris Oval Alexandrite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a vibrant oval lab-grown alexandrite with a halo of sparkling moissanite on a rose gold band.

Iris Oval Alexandrite Ring14K Rose Gold Vermeil

Regular price $170 $145 (-15%)

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Dakota Teardrop Emerald Ring Set in 14K Rose Gold Vermeil by Aquamarise featuring a vintage-inspired pear-shaped emerald with diamond accents on a delicate rose gold vermeil band.
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Dakota Teardrop Emerald Ring Set14K Rose Gold Vermeil

Regular price $185 $148 (-20%)

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Garnet Ring- 14K Rose Gold Vermeil by Aquamarise featuring a deep red garnet center surrounded by delicate antique-inspired rose gold vermeil details and sparkling accent stones.
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Natural Red Garnet Ring14K Rose Gold Vermeil

Regular price $175 $140 (-20%)

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Cordelia Oval Cut Lab-Grown Diamond Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold featuring a vintage-inspired oval diamond with halo and intricate milgrain detailing.
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Cordelia White Sapphire Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Oval Cut Simulated Gray Diamond Ring in Sterling Silver by Aquamarise featuring an elegant oval gray simulated diamond center with pear-shaped side stones in a modern, refined setting.
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Oval Cut Simulated Gray Diamond RingSterling Silver

Regular price $160 $128 (-20%)

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Ava Emerald Cut White Sapphire Engagement Ring in Sterling Silver by Aquamarise featuring an emerald-cut white sapphire center with pavé accents on a polished sterling silver band.
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Ava Emerald Cut White Sapphire Engagement RingSterling Silver

Regular price $160 $128 (-20%)

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Evelyn Natural London Blue Topaz Ring Set in Sterling Silver by Aquamarise featuring an oval London Blue Topaz with marquise and round white diamond accents on a polished sterling silver band.
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Evelyn Natural London Blue Topaz Ring SetSterling Silver

Regular price $175 $140 (-20%)

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Valeria Marquise Black Onyx Ring in Sterling Silver by Aquamarise featuring a marquise-cut black onyx surrounded by a halo of white stones on a polished sterling silver band.
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Valeria Marquise Black Onyx RingSterling Silver

Regular price $125 $100 (-20%)

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Cushion Cut Natural Tanzanite Engagement Ring in 14K White Gold (Hidden Halo) by Aquamarise Gold, featuring a vibrant cushion tanzanite and subtle hidden halo on a white gold band.
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Cushion Cut Tanzanite RingSterling Silver · Hidden Halo

Regular price $160 $128 (-20%)

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Victoria Natural Citrine Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring an oval natural citrine center surrounded by sparkling moissanite accents in a vintage-inspired design.
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Victoria Natural Citrine Ring14K Rose Gold Vermeil

Regular price $170 $136 (-20%)

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Emerald Cut Natural London Blue Topaz Ring in Sterling Silver by Aquamarise featuring a deep blue emerald-cut topaz with diamond accents on a sterling silver band.
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Emerald Cut Natural London Blue Topaz RingSterling Silver

Regular price $160 $128 (-20%)

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An oval red garnet engagement ring with a halo of white gold and accent stones set on a textured metal band.
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Iris Natural Garnet RingSterling Silver

Regular price $160 $128 (-20%)

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Black onyx engagement ring — emerald cut onyx solitaire in rhodium-finished sterling silver with pavé shoulders
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Ava Black Onyx RingSterling Silver

Regular price $160 $128 (-20%)

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Natural Tanzanite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vintage-inspired emerald cut tanzanite with delicate moissanite accents on an intricately detailed band.
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Vintage Tanzanite RingSterling Silver

Regular price $160 $128 (-20%)

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Rose gold ring with a green gemstone and white diamonds on a light purple background
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Adeline Marquise Emerald Ring14K Rose Gold Vermeil

Regular price $170 $136 (-20%)

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Iris Oval Amethyst Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a radiant oval purple amethyst surrounded by a sparkling halo and pavé diamond accents on a delicate band.

Iris Natural Amethyst RingSterling Silver

Regular price $160 $135 (-16%)

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Victorian Gothic Mystic Topaz Filigree Engagement Ring in Black Ruthenium by Aquamarise featuring a marquise mystic topaz and detailed Victorian scrollwork on a black ruthenium silver band.

Victorian Gothic Mystic Topaz Filigree Engagement RingBlack Ruthenium

Regular price $170 $145 (-15%)

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Mystic Moissanite Engagement Ring Celestial Moon Ring over light purple background

Mystic Moissanite Crescent Moon Ring SetSterling Silver

Regular price $225 $190 (-16%)

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Moss agate engagement ring with leaf design and diamond accent stones over light purple background

Moss Agate Botanical Leaf RingSterling Silver

Regular price $160 $135 (-16%)

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Celtic Knot Black Onyx Engagement Ring Set in Solid 14K Yellow Gold

Celtic Knot Black Onyx Ring Set14K Yellow Gold Vermeil

Regular price $200 $170 (-15%)

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Silver ring with purple gemstones on a light purple background

Oval Moissanite & Amethyst Leaf Engagement RingSterling Silver

Regular price $255 $215 (-16%)

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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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