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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.

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.

Triangle Green Moss Agate Engagement Ring

14K White Gold

from $1,695

Unit price
per 

Emerald Cut Aquamarine and Moonstone Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a luminous aquamarine center flanked by glowing moonstones in a sleek white gold setting.

Emerald Cut Aquamarine and Moonstone Engagement Ring

14K White Gold

from $2,015

Unit price
per 

Teardrop Aquamarine & Tanzanite Ring in Sterling Silver by Aquamarise featuring pear-cut aquamarine, tanzanite, and a small clear gemstone in a minimalist sterling silver band.

Aquamarine and Tanzanite Dainty Engagement Ring

14K White Gold

from $2,015

Unit price
per 

Lab Grown Ruby and Natural Australian Opal Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold featuring a pear cut ruby, Australian opal, and moissanite accents on a delicate rose gold band.

Lab Grown Ruby and Natural Australian Opal Engagement Ring

14K Solid Rose Gold

from $1,815

Unit price
per 

Brown Champagne Moissanite & Black Onyx Engagement Ring in 14K Solid Yellow Gold by Aquamarise Gold featuring a sleek modern design with contrasting dark onyx and warm champagne moissanite gemstones.

Brown Champagne Moissanite & Black Onyx Engagement Ring

14K Solid Yellow Gold

from $2,015

Unit price
per 

Toi Et Moi Morganite and Simulated Diamond Ring in Sterling Silver features a radiant rectangular morganite paired with a pear-shaped simulated diamond on a polished 925 sterling silver band by Aquamarise, part of Sterling Silver Rings and Fantasy-Inspired Engagement Rings collections.

Toi Et Moi Lab-Grown Diamond and Morganite Ring

14K White Gold · IGI Certified

from $2,863.95

Unit price
per 

Green gemstone earrings with rose gold setting on a white and purple gradient background

Toi Et Moi Moss Agate Ring

Solid 14K Rose Gold

from $1,895

Unit price
per 

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.

Toi Et Moi Morganite and Moissanite Ring

14K Solid Rose Gold

from $2,195

Unit price
per 

Toi Et Moi Emerald & Moissanite Two Stone Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a lab-grown emerald-cut emerald and pear-shaped D/VVS1 moissanite in a unique design.

Toi Et Moi Emerald & Moissanite Two Stone Engagement Ring

14K White Gold

from $1,945

Unit price
per 

Toi Et Moi Blue Sapphire & Aquamarine Engagement Ring in 14K White Gold by Aquamarise Gold featuring emerald-cut blue sapphire and pear-shaped aquamarine gemstones on a delicate white gold band.

Toi Et Moi Blue Sapphire & Aquamarine Engagement Ring

14K White Gold

from $1,945

Unit price
per 

Victoria Oval Cut Blue Sapphire Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, vintage-inspired with oval blue sapphire centerpiece and halo of brilliant moissanite accents.

Victoria Oval Cut Blue Sapphire Engagement Ring

14K Solid Rose Gold

from $2,195

Unit price
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.

Victoria Natural Citrine Ring

14K White Gold

from $2,195

Unit price
per 

Feyra Black Onyx Tiara Wedding Band- 14K White Gold by Aquamarise Gold showcases a regal white gold band adorned with pear-shaped and round black onyx stones in a crown-inspired design, part of Solid Gold Engagement Rings and Women’s Wedding Bands collections.

Feyra Gray Moissanite & Black Onyx Ring Set

14K White Gold

from $2,495

Unit price
per 

Victoria Art deco Aquamarine Ring- 14K White Gold by Aquamarise Gold, featuring an oval aquamarine center stone surrounded by sparkling moissanite accents in a vintage-inspired setting.

Victoria Art Deco Aquamarine Ring

14K White Gold

from $2,195

Unit price
per 

Victoria Art Deco Emerald Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval emerald center with vintage-inspired moissanite accents in a polished white gold setting.

Victoria Art Deco Emerald Engagement Ring

14K White Gold

from $2,195

Unit price
per 

Estée Lab-Grown Diamond Bridal Ring Set in Solid 14K Yellow Gold (IGI Certified) by Aquamarise Gold showcases a radiant oval-cut center diamond with pear-shaped and round accent stones on a sleek yellow gold band, part of Solid Gold Engagement Rings, April Birthstone Jewelry, Nature-Inspired and Fantasy-Inspired Engagement Rings collections.

Estée Lab-Grown Diamond Bridal Ring Set

Solid 14K Yellow Gold · IGI Certified

from $2,863.95

Unit price
per 

Victoria Natural Australian Opal Art Deco Engagement Ring in 14K White Gold by Aquamarise Gold, featuring an oval opal surrounded by tapered and round moissanite accents in a vintage-inspired design.

Victoria Natural Australian Opal Art Deco Engagement Ring

14K White Gold

from $2,195

Unit price
per 

Victoria Art Deco Moonstone Engagement Ring in 14K White Gold by Aquamarise Gold, featuring an oval moonstone centerpiece with radiant moissanite accents in a vintage-inspired design.

Victoria Art Deco Moonstone Engagement Ring

14K White Gold

from $2,195

Unit price
per 

Esme Moissanite & Alexandrite Ring- 14K Solid Yellow Gold by Aquamarise Gold features a sparkling marquise-cut moissanite center flanked by vibrant alexandrite and accent diamonds on a delicate yellow gold band, part of Solid Gold Engagement Rings and June Birthstone Jewelry collections.

Esme Lab-Grown Diamond & Alexandrite Ring

14K Solid Yellow Gold · IGI Certified

from $2,778.95

Unit price
per 

Victoria Lab-Grown Diamond Ring in 14K White Gold (IGI Certified) by Aquamarise Gold featuring an oval center stone with radiant baguette and round diamond halo on a sleek white gold band.

Victoria Lab-Grown Diamond Ring

14K White Gold · IGI Certified

from $2,497.95

Unit price
per 

Victoria Lab-Grown Diamond Ring in 14K White Gold (IGI Certified) by Aquamarise Gold featuring an oval center stone with radiant baguette and round diamond halo on a sleek white gold band.

Victoria Art Deco Moissanite Ring

14K White Gold

from $2,145

Unit price
per 

Skye Kite® Blue Fire Opal & Topaz Engagement Ring Set- 14K White Gold features a kite-cut vibrant blue fire opal centerpiece accented with marquise and round topaz and diamond gemstones on polished white gold bands by Aquamarise Gold, a stunning choice in Fantasy-Inspired Engagement Rings and Birthstone Jewelry collections.

Skye Kite® Blue Fire Opal & Topaz Engagement Ring Set

14K White Gold

from $2,195

Unit price
per 

Amy Rutilated Quartz & Black Moissanite Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a pear-shaped rutilated quartz center with black moissanite and pavé diamond accents.

Amy Rutilated Quartz & Black Moissanite Engagement Ring Set

14K White Gold

from $2,195

Unit price
per 

Esme Lab-Grown Diamond & Ruby Ring- 14K White Gold (IGI Certified) by Aquamarise Gold features a sparkling marquise lab-grown diamond centerpiece accented by vibrant lab-grown ruby stones on a nature-inspired sculpted white gold band, part of collections including Solid Gold Engagement Rings, April and July Birthstone Jewelry, and Unique Engagement Rings.

Esme Lab-Grown Diamond & Ruby Ring

14K White Gold · IGI Certified

from $2,778.95

Unit price
per 

Esme Lab-Grown Diamond & Ruby Ring- 14K White Gold (IGI Certified) by Aquamarise Gold features a sparkling marquise lab-grown diamond centerpiece accented by vibrant lab-grown ruby stones on a nature-inspired sculpted white gold band, part of collections including Solid Gold Engagement Rings, April and July Birthstone Jewelry, and Unique Engagement Rings.

Esme Moissanite & Ruby Ring

14K White Gold

from $2,145

Unit price
per 

Esme Lab-Grown Diamond & Aquamarine Ring- 14K White Gold (IGI Certified) by Aquamarise Gold, featuring an oval lab-grown diamond center surrounded by delicate natural aquamarine accents on a sculpted white gold band, part of Solid Gold Engagement Rings and March and April Birthstone Jewelry collections.

Esme Lab-Grown Diamond & Aquamarine Ring

14K White Gold · IGI Certified

from $2,778.95

Unit price
per 

Esme Moissanite & Aquamarine Ring- 14K White Gold by Aquamarise Gold featuring an oval moissanite center stone accented with bright aquamarine gems on a delicately carved white gold band, part of Solid Gold Engagement Rings and March Birthstone Jewelry collections.

Esme Moissanite & Aquamarine Ring

14K White Gold

from $2,145

Unit price
per 

Feyra Lab-Grown Diamond & Amethyst Ring Set- 14K Solid Yellow Gold (IGI Certified) by Aquamarise Gold, featuring a pear-shaped lab-grown diamond center stone surrounded by marquise and round amethyst accents on an intricately designed yellow gold band, from Solid Gold Engagement Rings, February Birthstone, and Nature-Inspired Engagement Rings collections.

Feyra Amethyst & Moissanite Engagement Ring Set

14K Solid Yellow Gold

from $2,495

Unit price
per 

Iris Green Amethyst Engagement Ring in 14K White Gold by Aquamarise Gold, showcasing a radiant light green amethyst surrounded by a halo of sparkling stones on a pavé diamond band.

Iris Green Amethyst Engagement Ring

14K White Gold

from $1,995

Unit price
per 

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.

Iris Oval Lab-Grown Diamond Engagement Ring

14K White Gold · IGI Certified

from $2,595

Unit price
per 

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.

Iris Halo Oval Moissanite Engagement Ring

14K White Gold

from $2,195

Unit price
per 

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.

Iris Oval London Blue Topaz Engagement Ring

14K White Gold

from $1,995

Unit price
per 

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

Iris Oval Red Garnet Engagement Ring

14K White Gold

from $1,995

Unit price
per 

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 Oval Amethyst Engagement Ring

14K White Gold

from $1,995

Unit price
per 

An oval blue sapphire engagement ring with a halo of white gold and diamond accents on a purple and gray background.

Iris Oval Blue Sapphire Engagement Ring

14K White Gold

from $1,995

Unit price
per 

A lab-grown diamond engagement ring with a Fantasy Star Cut pear-shaped center stone in 14K solid yellow gold, displayed on a grey and purple background.

Briar Moissanite Engagement Ring

14K Solid Yellow Gold · Fantasy Cut

from $1,845

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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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

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