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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.

Gold ring with a central opal stone and diamond accents on a light purple background

Australian Opal Engagement Ring

14K Yellow Gold Vermeil

Regular price $175 $150 (-14%)

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Lily Vintage Emerald Flower Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval lab-grown emerald with marquise and round diamond accents in a vintage floral design.

Lily Vintage Emerald Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Celtic Knot Mystic Topaz Ring | Gothic Alternative Engagement Ring

Celtic Knot Mystic Topaz Ring Set

Black Ruthenium

Regular price $185 $155 (-16%)

Unit price
per 

Galaxy sandstone leaf ring — round blue goldstone in a 14K rose gold vermeil leaf and vine setting

Galaxy Sandstone (Starry Night®) Leaf Ring

14K Rose Gold Vermeil

Regular price $170 $69.99 (-59%)

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Solitaire Alexandrite Hidden Halo Engagement Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a rectangular emerald-cut alexandrite gemstone with subtle hidden halo detailing.

Solitaire Alexandrite Hidden Halo Engagement Ring

14K Rose Gold Vermeil

Regular price $175 $99.99 (-43%)

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Jasmine Aquamarine Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a round aquamarine center with floral diamond accents and a diamond-studded contoured band.

Jasmine Round Cut Aquamarine Flower Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

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Ellie Princess Cut Lab-Grown Blue Diamond Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold featuring a radiant princess-cut blue diamond with sparkling side stones.

Ellie Princess Cut Aquamarine Ring

Sterling Silver

Regular price $160 $135 (-16%)

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A fantasy cut pink sapphire engagement ring set in 14K white gold, with Moissanite accent stones on the band, displayed against a gradient purple and pink background.

Faye Pink Sapphire Engagement Ring Set

Sterling Silver · Fantasy Cut

Regular price $175 $150 (-14%)

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Orion Nebula™ & Tanzanite Couples Ring Set by Aquamarise, featuring a unique elongated tanzanite stone with diamond accents in a celestial-inspired black finish design.

Hexagon Coffin Tanzanite Engagement Ring Set

Black Ruthenium

Regular price $175 $150 (-14%)

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per 

Starry Night Sandstone Ring Set- 14K Solid Rose Gold featuring kite-cut sparkling blue gemstone with rose gold band and delicate diamond accents by Aquamarise Gold.

Starry Night® Sandstone Ring Set

14K Rose Gold Vermeil

Regular price $200 $170 (-15%)

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per 

Alexandrite and Moonstone Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a rectangular alexandrite flanked by glowing moonstones on a polished rose gold band.

Minimalist Alexandrite & Moonstone Ring

14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

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per 

Triangle Green Moss Agate Engagement Ring in 14K White Gold by Aquamarise Gold with a unique nature-inspired triangle cut green moss agate stone on a sleek white gold band.

Minimalist Triangle Green Moss Agate Ring

Sterling Silver

Regular price $160 $69.99 (-56%)

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Art Deco Sapphire Ring | Sterling Silver Vintage Sapphire Ring

Princess Cut Blue Sapphire Ring

Sterling Silver

Regular price $160 $89.99 (-44%)

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per 

Amy Pink Sapphire Engagement Ring Set in Sterling Silver by Aquamarise featuring a pear-cut pink sapphire with smaller pink sapphires and diamond accents in a vintage-inspired design.

Amy Pink Sapphire Engagement Ring Set

Sterling Silver

Regular price $160 $79.99 (-50%)

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Eva Oval Cut Alexandrite Flower Ring in Sterling Silver by Aquamarise, featuring a lab-created oval alexandrite center with sparkling marquise-cut accents in a vintage floral design.

Eva Oval Cut Alexandrite Flower Ring

Sterling Silver

Regular price $170 $145 (-15%)

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Vintage Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval lab-grown alexandrite center and intricate diamond-accented vintage-inspired band design.

Vintage Alexandrite Ring

Sterling Silver

Regular price $170 $109.99 (-35%)

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Briar Natural Red Garnet Couples Ring Set by Aquamarise featuring a pear-shaped red garnet center with diamond halo on black finish band, matching couples rings, elegant gemstone jewelry.

Briar Natural Red Garnet Ring

Black Ruthenium

Regular price $160 $135 (-16%)

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per 

Moss Agate & Emerald Celtic Knot Ring in 14K Solid Yellow Gold by Aquamarise Gold, featuring a marquise moss agate center with emerald accents in a Celtic-inspired design.

Marquise Celtic Knot Moss Agate Ring

14K Yellow Gold Vermeil

Regular price $170 $145 (-15%)

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per 

London Blue Topaz Leaf Ring- 14K White Gold by Aquamarise Gold, featuring a deep blue topaz with detailed leaf and vine accents, part of nature-inspired and birthstone jewelry collections.

Natural London Blue Topaz Leaf Ring

Sterling Silver

Regular price $160 $89.99 (-44%)

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Natural Garnet 3pcs Ring Set in 14K Rose Gold Vermeil by Aquamarise, featuring a pear-cut red garnet with a diamond halo, a pave band, and a marquise crown band.

Natural Garnet 3pcs Ring Set

14K Rose Gold Vermeil

Regular price $200 $109.99 (-45%)

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per 

Ring with a green gemstone on a white background

Hexagon Green Moss Agate Ring

Sterling Silver

Regular price $160 $135 (-16%)

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Lab-Grown Diamond Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold, featuring a pear-shaped center diamond with a halo and intricate band details, from Solid Gold Engagement Rings.

Vintage Simulated Diamond Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

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per 

Art Deco Morganite Engagement Ring in Solid 14K Rose Gold – side profile view

Art Deco Morganite Ring

14K Rose Gold Vermeil

Regular price $175 $79.99 (-54%)

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per 

Bella Oval Cut Teal Sapphire Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring an oval teal sapphire with sparkling diamond accents in a sophisticated, elegant design.

Bella Oval Teal Sapphire Engagement Ring Set

Sterling Silver

Regular price $175 $79.99 (-54%)

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per 

Gray Moissanite Crescent Moon Couples Ring Set by Aquamarise featuring a marquise-cut gray moissanite center stone accented by crescent moon motifs and small diamonds on polished silver bands, from Matching Couples' Rings and Moissanite Gemstone Jewelry collections.

Gray Moissanite Crescent Moon Engagement Ring Set

Sterling Silver

Regular price $225 $190 (-16%)

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Esme Oval Cut Teal Moissanite Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a vibrant teal center stone with sparkling accents in a nature-inspired design.

Esme Teal Moissanite Engagement Ring

Sterling Silver

Regular price $205 $175 (-15%)

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Skye Kite® Green Moss Agate Ring Set in 14K Yellow Gold Vermeil featuring a kite-cut moss agate surrounded by sparkling white stones, elegant vintage-inspired design by Aquamarise.

Skye Kite® Green Moss Agate Engagement Ring Set

14K Solid Yellow Gold

from $2,195

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per 

Opalescent Pink Sapphire Engagement Ring Set in 14K Rose Gold Vermeil featuring a pear-shaped pink sapphire with delicate diamond accents on a rose gold band by Aquamarise.

Opalescent Pink Sapphire Engagement Ring Set

14K Rose Gold Vermeil

Regular price $170 $79.99 (-53%)

Unit price
per 

Kite Cut Green Moss Agate Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold featuring a unique kite-shaped moss agate with diamond accents in a vintage rose gold design.

Kite Cut Green Moss Agate Bridal Ring Set

14K Rose Gold Vermeil

Regular price $185 $89.99 (-51%)

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Princess Cut Simulated Diamond Engagement Ring in Sterling Silver by Aquamarise, featuring a sparkling princess cut center stone with pavé accents on a rhodium-finished sterling silver band.

Princess Cut Simulated Diamond Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

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per 

Starburst Natural Moonstone Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval moonstone surrounded by marquise and round diamonds on a polished white gold band.

Starburst Natural Moonstone Ring

Sterling Silver

Regular price $160 $128 (-20%)

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per 

Ellie Princess Cut Morganite Engagement Ring in Sterling Silver by Aquamarise, angled view showing the princess-cut morganite and split shoulders.

Ellie Princess Cut Morganite Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Siren Queen Marquise Aquamarine Lotus Ring by Aquamarise

Siren Queen Marquise Aquamarine Lotus Ring

14K Yellow Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Ring with pink gemstone and diamond accents on a light purple background

Elowen Kite Cut Morganite Ring Set

Sterling Silver

Regular price $185 $155 (-16%)

Unit price
per 

Vintage Alexandrite Fairytale Engagement Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a color-shifting alexandrite and delicate diamond accents in a vintage-inspired setting.

Vintage Alexandrite Fairytale Engagement Ring

14K Rose Gold Vermeil

Regular price $170 $69.99 (-59%)

Unit price
per 

Moss Agate Engagement Ring in 14K White Gold (Hidden Halo) by Aquamarise Gold, showcasing an emerald-cut green moss agate on a sleek white gold band with a nature-inspired design.

Emerald Cut Green Moss Agate Engagement Ring

Sterling Silver · Hidden Halo

Regular price $160 $135 (-16%)

Unit price
per 

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

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Fairy Engagement Rings: The Complete Guide to Fairycore Styles

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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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