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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.

Cordelia Green Moss Agate Vintage Engagement Ring in 14K White Gold by Aquamarise Gold, featuring oval moss agate with natural green inclusions and diamond accents on a twisted white gold band.
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.

Alexandrite and Moonstone Ring in 14K Solid Rose Gold

from $1,975

Unit price
per 

Toi Et Moi Peridot and Emerald Engagement Ring in 14K White Gold by Aquamarise Gold featuring pear-cut vibrant green emerald and bright peridot stones in a delicate white gold band.

Toi Et Moi Peridot and Emerald Engagement Ring in 14K White Gold

from $1,945

Unit price
per 

Emerald Engagement Ring in 14K Solid Yellow Gold (Hidden Halo) by Aquamarise Gold, featuring a vibrant emerald cut green gemstone with sparkling diamond accents on a delicate yellow gold band.

Emerald Engagement Ring in 14K Solid Yellow Gold (Hidden Halo)

from $2,175

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per 

Hexagon Green Moss Agate Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a natural moss agate hexagon cut with geometric side stones in a delicate rose gold setting.

Hexagon Green Moss Agate Engagement Ring in 14K Solid Rose Gold

from $1,995

Unit price
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.

Triangle Green Moss Agate Engagement Ring in 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.
Minimalist Triangle Cut Alexandrite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a vibrant triangle-cut lab-grown alexandrite in a sleek rose gold band design.
Natural Herkimer Diamond Cluster Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a unique raw Herkimer diamond and moissanite accents in an elegant celestial design.
Padparadscha Sapphire Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring kite-cut orange sapphire with moissanite accents in a modern, elegant design.

Padparadscha Sapphire Engagement Ring Set in 14K Solid Rose Gold

from $2,175

Unit price
per 

Moss Agate and Lab Emerald Cluster Engagement Ring in 14K White Gold featuring pear-cut moss agate with lab emerald accents by Aquamarise Gold styled on reflective surface.
Ring with a green gemstone and rose gold band on a white background

Kite Cut Green Moss Agate Engagement Ring in Solid 14K Rose Gold

from $1,685

Unit price
per 

Ring with a pink diamond and smaller clear diamonds on a reflective surface with a blurred purple background

Kite Cut Natural Morganite Engagement Ring in 14K White Gold

from $2,375

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.
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.
Estée Lab-Grown Fancy Oval Cut Blue Diamond Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold features a radiant oval blue diamond centerpiece accented by pear and round-cut diamonds on a polished white gold band, part of Solid Gold Engagement Rings, April Birthstone Jewelry, and Nature-Inspired Engagement Rings collections.

Estée Aquamarine Bridal Ring Set in 14K White Gold

from $2,195

Unit price
per 

Moonstone and Aquamarine Leaf Engagement Ring Set- 14K White Gold features an oval moonstone centerpiece surrounded by marquise-cut aquamarines and sparkling diamonds on a nature-inspired twisted white gold band by Aquamarise Gold, part of Solid Gold Engagement Rings, March and June Birthstone Jewelry, and Fantasy-Inspired Engagement Rings collections.
Coffin Cut Alexandrite & Moonstone Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a vibrant coffin-shaped alexandrite with moonstone and diamond accents on a polished band.
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.
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 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 Morganite and Moissanite Ring in 14K White Gold

from $2,375

Unit price
per 

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

Toi Et Moi Moss Agate Ring in Solid 14K Rose Gold

from $1,895

Unit price
per 

Toi Et Moi Salt & Pepper Herkimer Diamond & Black Onyx Ring in 14K White Gold by Aquamarise Gold, featuring a hexagon-cut Herkimer diamond and pear-cut black onyx in a gothic engagement style.
Gold ring with blue and purple gemstones on a white background
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 in 14K Solid Rose Gold

from $2,195

Unit price
per 

Toi Et Moi Rutilated Quartz & Black Onyx Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a gothic-inspired duo of stones in a sleek solid gold band design.
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 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.
Victoria Art Deco Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval alexandrite framed by radiant moissanite accents in a vintage-inspired design.

Victoria Art Deco Alexandrite Engagement Ring in 14K White Gold

from $2,195

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 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 in 14K White Gold

from $2,195

Unit price
per 

Victoria Black Onyx Engagement Ring in 14K White Gold by Aquamarise Gold featuring an oval black onyx center surrounded by tapered moissanite accents on a sleek white gold band.

Victoria Black Onyx Engagement Ring in 14K White Gold

from $2,195

Unit price
per 

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Fantasy-inspired designs

Unique engagement rings are the ones that don’t look like everything else in the case — rings built around unusual gemstones, unconventional cuts and settings you won’t find in a mall jeweler’s standard range. Aquamarise has built its entire catalog around that idea: moss agate, salt-and-pepper diamonds, alexandrite and fantasy cuts set in nature-inspired, gothic and celestial designs. This collection is the full range of unique engagement rings, in genuine 925 sterling silver, gold vermeil and solid gold.

What makes an engagement ring unique

Three things, usually. The stone: moss agate, rutilated quartz, salt-and-pepper diamonds and opal all carry natural patterns that never repeat, so the ring is literally one of a kind. The cut: kite, hexagon, coffin and fireworks fantasy cuts break from the round-brilliant default. And the setting: nature-inspired, gothic and floral designs turn the mount itself into the statement.

Unique engagement rings for women

The most-requested unique styles pair an unusual stone with a distinctive silhouette — a moss agate engagement ring in a leafy setting, a toi et moi two-stone design, or an east west setting that turns the stone sideways. For colored center stones see gemstone engagement rings; for something sparkling but affordable, moissanite engagement rings.

Unique, alternative & non-traditional

These terms overlap but lean differently. Unique is about the design being one of a kind. Alternative engagement rings emphasize stepping away from the diamond-solitaire convention entirely. If you want the classic look done well instead, see traditional engagement rings, or for a pre-engagement commitment piece, promise rings.

Unique Engagement Rings FAQs

What counts as a unique engagement ring?

An engagement ring that departs from the standard round-brilliant diamond solitaire — through an unusual gemstone, an unconventional cut such as kite or hexagon, or a distinctive setting like nature-inspired or gothic designs.

Which gemstones make a ring one of a kind?

Stones with natural, non-repeating patterns: moss agate, rutilated quartz, salt-and-pepper diamonds and opal. No two stones share the same internal pattern, so each ring is genuinely singular.

Are unique engagement rings durable enough for daily wear?

Most are, but it depends on the stone’s hardness. Sapphire (Mohs 9), moissanite (9.25) and diamond (10) are extremely durable; quartz-family stones like moss agate and rutilated quartz sit at 7 and benefit from a protective setting.

What is the difference between unique and alternative engagement rings?

They overlap heavily. Unique emphasizes a one-of-a-kind design; alternative emphasizes stepping away from the traditional diamond solitaire. Many rings qualify as both.

Can a unique engagement ring be customized?

Yes — stone, cut and metal can be specified on many designs. See custom engagement rings for made-to-order options.

What metals are available?

Genuine 925 sterling silver, 14K gold vermeil, and made-to-order solid gold and platinum. See solid gold rings and sterling silver engagement rings.

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