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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.

Eva Starry Night (Sandstone) Engagement Ring in 14K White Gold by Aquamarise Gold featuring a sparkling blue sandstone center and marquise diamond accents in a vintage-inspired setting.

Eva Starry Night® Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Moss Agate & Fire Opal Fairy Leaf Ring

Rowan Moss Agate & Fire Opal Fairy Leaf Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Rainbow Moissanite Crescent Moon Engagement Ring Set in Sterling Silver by Aquamarise Gold, featuring a marquise-cut rainbow moissanite center stone with pastel violet, blue, and gold flashes, set in polished sterling silver, part of Sterling Silver Rings and Moissanite Engagement Rings collections.
Made to Order

Rainbow Moissanite Crescent Moon Engagement Ring Set

Sterling Silver

Regular price $225 $190 (-16%)

Unit price
per 

Elowen Kite Cut Aquamarine Engagement Ring Set in Sterling Silver

Elowen Kite Cut Aquamarine Engagement Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Hexagon Coffin Rutilated Quartz Geometric Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a unique rutilated quartz centerpiece with diamond accents on white gold bands.

Hexagon Coffin Rutilated Quartz Engagement Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Stella Green Moss Agate Ring in 14K Rose Gold Vermeil by Aquamarise, featuring an oval green moss agate in a north-star halo of marquise and round accents.

Stella Green Moss Agate Ring

14K Rose Gold Vermeil

Regular price $170 $69.99 (-59%)

Unit price
per 

Cordelia Oval Cut Australian Opal Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval Australian opal surrounded by sparkling diamonds in a vintage-inspired design.

Cordelia Natural Australian Opal Engagement Ring

Sterling Silver

Regular price $160 $79.99 (-50%)

Unit price
per 

Elowen Kite Cut Green Moss Agate Engagement Ring Set in Sterling Silver by Aquamarise, featuring a kite-cut moss agate center stone surrounded by sparkling clear stones in a nature-inspired design.

Elowen Kite Cut Green Moss Agate Engagement Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Fireworks Cut Aquamarine Couples Ring Set by Aquamarise featuring a sparkling oval aquamarine center stone with intricate silver band accents and small diamond details, part of Matching Couples' Rings and March Birthstone Jewelry collections.

Celtic Aquamarine Ring Set

Sterling Silver · Fantasy Cut

Regular price $175 $150 (-14%)

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Galaxy Green Fire Opal Couples Ring Set by Aquamarise featuring a vibrant diamond-shaped green fire opal surrounded by black stones set on polished silver bands symbolizing love and unity.

Kite Cut Green Fire Opal & Black Onyx Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Natural Freshwater Pearl Ring Set in 14K Rose Gold Vermeil by Aquamarise featuring a luminous pearl centerpiece with sparkling accents on a vintage-inspired rose gold vermeil band.

Natural Freshwater Pearl Ring Set

14K Rose Gold Vermeil

Regular price $195 $109.99 (-44%)

Unit price
per 

Hexagon Moss Agate & Whiskey Barrel Couples Rings Set featuring a rose gold hexagon moss agate ring with leaf details and complementary bands by Aquamarise in matching couples' rings collection.

Hexagon Moss Agate Leaf Engagement Ring Set

14K Rose Gold Vermeil

Regular price $195 $165 (-15%)

Unit price
per 

Vintage Australian Opal Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a luminous opal center with diamond accents and an intricate vintage-inspired band design.

Natural Australian Opal Ring

14K Rose Gold Vermeil

Regular price $175 $79.99 (-54%)

Unit price
per 

Lunette Teardrop Natural Pink Tourmaline Engagement Ring Set in 14K White Gold featuring a pear-shaped pink tourmaline surrounded by white diamond accents in a delicate white gold setting.

Lunette Teardrop Pink Tourmaline Engagement Ring Set

Sterling Silver

Regular price $175 $79.99 (-54%)

Unit price
per 

Starburst Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vibrant alexandrite center stone with halo and pavé diamond accents in a unique, fantasy-inspired design.

Starburst Alexandrite Ring

Sterling Silver

Regular price $170 $79.99 (-53%)

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 Engagement Ring

Sterling Silver

Regular price $160 $79.99 (-50%)

Unit price
per 

Everly White Fire Opal Ring in Sterling Silver by Aquamarise featuring an oval white fire opal with sparkling diamond accents on a sleek sterling silver band.

Everly White Fire Opal Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Lunette Black Onyx Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a teardrop black onyx center surrounded by sparkling diamonds on a sleek white gold band.

Lunette Black Onyx Ring Set

Sterling Silver

Regular price $175 $79.99 (-54%)

Unit price
per 

Skylar Kite Cut Black Onyx Engagement Ring Set in Sterling Silver by Aquamarise featuring a kite-shaped black onyx center stone with sparkling accent diamonds in a vintage-inspired design.

Skylar Kite Cut Black Onyx Engagement Ring Set

Sterling Silver

Regular price $175 $109.99 (-37%)

Unit price
per 

Diamond ring with a oval-shaped center stone on a soft purple background
Made to Order

Esme Vintage Oval Moissanite Engagement Ring

Sterling Silver

Regular price $240 $205 (-15%)

Unit price
per 

Green Moss Agate Leaf Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a marquise-cut moss agate center stone accented by emerald and diamond leaf motifs, displayed on a soft gray cushion.

Green Moss Agate & Emerald Leaf Engagement Ring Set

14K Solid Rose Gold

from $2,545

Unit price
per 

Hexagon Sapphire Blue Opal Engagement Ring in Sterling Silver by Aquamarise, featuring a deep blue hexagon sapphire with vibrant blue opal accents and sparkling white stones on a sleek silver band.

Hexagon Sapphire Blue Opal Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Skye Kite® Natural Sunstone Ring Set in Sterling Silver by Aquamarise, featuring a radiant kite-cut sunstone with sparkling accent stones in a modern, fantasy-inspired design.

Skye Kite® Natural Sunstone Ring Set

Sterling Silver

Regular price $170 $99.99 (-41%)

Unit price
per 

Princess Cut Green Moss Agate Ring in Sterling Silver by Aquamarise, featuring a square moss agate centerpiece with delicate silver accents on a slender band against a soft purple background.

Princess Cut Green Moss Agate Ring

Sterling Silver

Regular price $160 $79.99 (-50%)

Unit price
per 

Green Moss Agate & Natural Australian Fire Opal Ring in Sterling Silver by Aquamarise featuring pear-shaped green moss agate, natural Australian white fire opal, and CZ accent on delicate band.

Green Moss Agate & Natural Australian Fire Opal Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Cushion Cut Aquamarine Ring in Sterling Silver (Hidden Halo) by Aquamarise, featuring a sparkling aquamarine center with CZ accents on a delicate sterling silver band.

Cushion Cut Aquamarine Ring

Sterling Silver · Hidden Halo

Regular price $160 $69.99 (-56%)

Unit price
per 

Marquise Cut White Sapphire Engagement Ring Set in Sterling Silver by Aquamarise featuring a radiant marquise sapphire surrounded by sparkling accents from the Sterling Silver Rings and September Birthstone Jewelry collections.

Marquise Cut White Sapphire Engagement Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Evelyn Alexandrite Engagement Ring Set in 14K White Gold featuring an oval alexandrite center with marquise and round diamond accents on a detailed white gold band by Aquamarise Gold.

Evelyn Oval Cut Alexandrite Engagement Ring Set

Sterling Silver

Regular price $195 $109.99 (-44%)

Unit price
per 

Teardrop Tanzanite Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a pear-shaped vibrant tanzanite surrounded by intricate diamond accents in a white gold setting.

Teardrop Tanzanite Engagement Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Ava Emerald Cut Aquamarine Engagement Ring in Sterling Silver by Aquamarise featuring a radiant emerald-cut aquamarine center with diamond accents on a sleek sterling silver band.

Ava Emerald Cut Aquamarine Engagement Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Sophia Twisted Vine Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold showcases a princess-cut alexandrite center stone with a twisted white gold band accented by sparkling diamonds, part of Solid Gold Engagement Rings, June Birthstone Jewelry, and Nature-Inspired collections.

Sophia Twisted Vine Princess Cut Alexandrite Ring

Sterling Silver

Regular price $170 $99.99 (-41%)

Unit price
per 

Elain Swiss Blue Topaz Leaf Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a marquise-cut Swiss Blue Topaz center stone with sparkling diamond accents and intricate leaf-inspired details, part of Solid Gold Engagement Rings and November Birthstone collections.

Elain Swiss Blue Topaz Fairy Leaf Ring

Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Pink Fire Opal & Sapphire Celtic Knot Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a marquise pink fire opal center with sapphire accents and intricate rose gold knot design.

Pink Fire Opal & Sapphire Celtic Knot Ring

14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Crescent Moon Ruby Engagement Ring Set in 14K Solid Yellow Gold featuring a vibrant marquise-cut ruby center stone flanked by delicate crescent moon accents and sparkling round diamonds, designed by Aquamarise Gold.

Crescent Moon Ruby Ring Set

14K Yellow Gold Vermeil

Regular price $185 $89.99 (-51%)

Unit price
per 

Lunar Starlight Sandstone Ring Set (Starry Night) in 14K White Gold featuring a marquise-cut blue sandstone with sparkling gold flecks, accented by vibrant blue gemstones on elegant white gold bands by Aquamarise Gold.

Starry Night® and Sapphire Ring Set

Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Blue Fire Opal Engagement Ring- 14K Solid Yellow Gold featuring a teardrop opal center with halo and pear-shaped opal accents in delicate yellow gold by Aquamarise Gold.

Blue Fire Opal Engagement Ring

14K Yellow Gold Vermeil

Regular price $170 $145 (-15%)

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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