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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.

Marquise Cut Aquamarine Ring Set in Sterling Silver by Aquamarise featuring a radiant aquamarine center with sparkling diamond accents in a vintage-inspired, elegant design.

Marquise Cut Aquamarine Ring Set

Sterling Silver

Regular price $175 $79.99 (-54%)

Unit price
per 

Lunette Teardrop Alexandrite Ring Set in 14K Rose Gold Vermeil by Aquamarise featuring a pear-shaped alexandrite center and diamond accents from Rose Gold Vermeil Rings and June Birthstone Jewelry collections.

Lunette Teardrop Alexandrite Ring Set

14K Rose Gold Vermeil

Regular price $195 $89.99 (-54%)

Unit price
per 

Teal Moissanite Marquise Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a striking marquise teal moissanite center stone flanked by sparkling colorless moissanite accents, a unique design from the Solid Gold Moissanite Engagement Rings collection.
Made to Order

Teal Moissanite Marquise Engagement Ring

Sterling Silver

Regular price $230 $195 (-15%)

Unit price
per 

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 Set

Sterling Silver

Regular price $225 $190 (-16%)

Unit price
per 

Art Deco Natural London Blue Topaz Engagement Ring in Sterling Silver by Aquamarise, featuring an emerald-cut deep blue topaz center stone flanked by tapered baguette clear gemstones on a polished sterling silver band, perfect for Sterling Silver Rings, November Birthstone, Engagement Rings for Women, and Birthstone Jewelry collections.

Art Deco Natural London Blue Topaz Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Skye Kite® Green Moss Agate Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a kite-cut moss agate center with diamond accents on a white gold band.

Skye Kite® Green Moss Agate Engagement Ring Set

14K White Gold

from $2,195

Unit price
per 

Green Moss Agate & Emerald Leaf Engagement Ring Set in 14K Solid Yellow Gold by Aquamarise Gold, featuring a natural moss agate center stone with vibrant emerald and diamond accents in an intricate leaf-inspired design, part of Solid Gold Engagement Rings and May Birthstone Jewelry collections.

Green Moss Agate & Emerald Leaf Engagement Ring Set

14K Solid Yellow Gold

from $2,545

Unit price
per 

Skye Kite® Natural Herkimer Diamond Engagement Ring Set in 14K White Gold (Salt & Pepper Diamond) by Aquamarise Gold, featuring a kite-cut salt and pepper diamond with sparkling white gold accents.

Skye Kite® Natural Herkimer Diamond Engagement Ring Set

14K White Gold · Salt & Pepper Diamond

from $2,195

Unit price
per 

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

Red Fire Opal & Black Onyx Ring

14K Rose Gold Vermeil

Regular price $175 $99.99 (-43%)

Unit price
per 

Blue Sapphire & Moissanite Leaf Ring Guard in 14K White Gold by Aquamarise Gold featuring vine and leaf motifs with lab-grown blue sapphires and sparkling moissanite accents.

Oval Cut Moissanite & Blue Sapphire Leaf Engagement Ring Set

14K White Gold

from $2,545

Unit price
per 

Hexagon Morganite Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold featuring a blush pink hexagon-cut morganite with diamond accents on rose gold bands, a unique engagement ring set.

Hexagon Morganite Ring Set

14K Rose Gold Vermeil

Regular price $200 $170 (-15%)

Unit price
per 

Princess Cut Rutilated Quartz Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring a unique rutilated quartz center with sparkling diamond accents in a modern rose gold setting.

Natural Black Rutilated Quartz Ring Set

14K Rose Gold Vermeil

Regular price $200 $89.99 (-55%)

Unit price
per 

Natural Australian Opal Engagement Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a vintage-inspired design with a glowing opal center and diamond accents on an ornate rose gold band.

Natural Australian Opal Engagement Ring

14K Rose Gold Vermeil

Regular price $175 $79.99 (-54%)

Unit price
per 

Turquoise Ring Set Rose Gold | Teardrop Vintage Engagement

Natural Turquoise Teardrop Stacking Ring Set

14K Rose Gold Vermeil

Regular price $185 $155 (-16%)

Unit price
per 

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.

Pear Morganite Engagement Ring Set

14K Rose Gold Vermeil

Regular price $185 $79.99 (-57%)

Unit price
per 

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.

Amy Rutilated Quartz & Black Onyx Ring Set

14K Rose Gold Vermeil

Regular price $200 $89.99 (-55%)

Unit price
per 

Amy Teardrop Alexandrite Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a pear-shaped alexandrite surrounded by sparkling diamonds in a unique fantasy-inspired design.

Amy Teardrop Lab-Grown Alexandrite Engagement Ring Set

Sterling Silver

Regular price $195 $109.99 (-44%)

Unit price
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.

Valentina Art Deco Ruby Engagement Ring

Sterling Silver

Regular price $160 $79.99 (-50%)

Unit price
per 

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.

Vintage Cushion Cut Aquamarine Ring

14k Rose Gold Vermeil

Regular price $175 $109.99 (-37%)

Unit price
per 

Minimalist Aquamarine Ring in Sterling Silver

Minimalist Aquamarine Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Aria Teardrop Alexandrite Stacking Ring Set in Sterling Silver

Aria Teardrop Alexandrite Stacking Ring Set

Sterling Silver

Regular price $195 $109.99 (-44%)

Unit price
per 

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.

Iris Natural Peridot Ring

Sterling Silver

Regular price $160 $79.99 (-50%)

Unit price
per 

Rose gold ring with a pink gemstone and diamond accents on a light purple background

Lily Oval Morganite Flower Ring

14K Rose Gold Vermeil

Regular price $175 $79.99 (-54%)

Unit price
per 

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 Ring

Sterling Silver · Hidden Halo

Regular price $160 $135 (-16%)

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 Simulated Diamond Engagement Ring

Sterling Silver

Regular price $160 $89.99 (-44%)

Unit price
per 

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.

Cushion Cut Tanzanite Ring

Sterling Silver · Hidden Halo

Regular price $160 $99.99 (-38%)

Unit price
per 

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.

Eva London Blue Topaz Engagement Ring

Sterling Silver

Regular price $160 $69.99 (-56%)

Unit price
per 

Princess Cut Blush Pink Morganite Engagement Ring in 14K Rose Gold Vermeil featuring a square-cut morganite center and pavé diamonds on a rose gold vermeil band by Aquamarise.

Princess Cut Blush Pink Morganite Engagement Ring

14K Rose Gold Vermeil

Regular price $175 $79.99 (-54%)

Unit price
per 

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 Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

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.

Princess Cut Lab Grown Ruby Engagement Ring

Sterling Silver

Regular price $160 $79.99 (-50%)

Unit price
per 

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.

Astra North Star Aquamarine Ring

14K Rose Gold Vermeil

Regular price $175 $79.99 (-54%)

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 Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Fire Queen Marquise Ruby & Black Onyx Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a marquise ruby center with black onyx accents on an intricate white gold band.

Fire Queen Marquise Ruby & Black Onyx Ring

Sterling Silver

Regular price $160 $128 (-20%)

Unit price
per 

Silver ring with purple gemstones on a light purple background
Made to Order

Oval Moissanite & Amethyst Leaf Engagement Ring

Sterling Silver

Regular price $255 $215 (-16%)

Unit price
per 

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 Ring

Sterling Silver

Regular price $220 $185 (-16%)

Unit price
per 

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.

Vintage Tanzanite Ring Set

Sterling Silver

Regular price $175 $79.99 (-54%)

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

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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