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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.

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.
Sale

Amy Pink Sapphire Engagement Ring Set in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

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.
Sale

Solitaire Alexandrite Hidden Halo Engagement Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

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.
Sale

Vintage Simulated Diamond Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

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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.
Sale

Ellie Princess Cut Aquamarine Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
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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.
Sale

Briar Natural Red Garnet Ring in Black Ruthenium

Regular price $160 $135 (-16%)

Unit price
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.
Sale

Minimalist Alexandrite & Moonstone Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

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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.
Sale

Kite Cut Green Moss Agate Bridal Ring Set in 14K Rose Gold Vermeil

Regular price $185 $155 (-16%)

Unit price
per 

Art Deco Sapphire Ring | Sterling Silver Vintage Sapphire Ring
Sale

Princess Cut Blue Sapphire Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Silver ring with a large, rectangular, black diamond on a light purple background
Sale

Elongated Hexagon Herkimer Diamond Ring in Sterling Silver

Regular price $160 $135 (-16%)

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.
Sale

Emerald Cut Green Moss Agate Engagement Ring in Sterling Silver (Hidden Halo)

Regular price $160 $135 (-16%)

Unit price
per 

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.
Sale

Eva Oval Cut Alexandrite Flower Ring in Sterling Silver

Regular price $170 $145 (-15%)

Unit price
per 

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.
Sale

Vintage Alexandrite Ring in Sterling Silver

Regular price $170 $145 (-15%)

Unit price
per 

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.
Sale

Faye Pink Sapphire Engagement Ring Set in Sterling Silver (Fantasy Cut)

Regular price $175 $150 (-14%)

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per 

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.
Sale

Kite Cut Green Fire Opal & Black Onyx Ring Set in Sterling Silver

Regular price $175 $150 (-14%)

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Emerald Cut London Blue Topaz Leaf Engagement Ring in 14K White Gold by Aquamarise Gold featuring a deep blue emerald-cut stone with diamond accents in a nature-inspired Art Deco design.
Sale

London Blue Topaz Leaf Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

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per 

Stella Green Moss Agate Ring- 14K Rose Gold Vermeil featuring an oval moss agate center stone surrounded by sparkling marquise and round cut crystals in a rose gold band.
Sale

Stella Green Moss Agate Ring in 14K Rose Gold Vermeil

Regular price $170 $145 (-15%)

Unit price
per 

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

Art Deco Morganite Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

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.
Sale

Lunette Teardrop Pink Tourmaline Engagement Ring Set in Sterling Silver

Regular price $175 $150 (-14%)

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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.
Sale

Bella Oval Teal Sapphire Engagement Ring Set in Sterling Silver

Regular price $175 $150 (-14%)

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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.
Sale

Vintage Alexandrite Fairytale Engagement Ring in 14K Rose Gold Vermeil

Regular price $170 $145 (-15%)

Unit price
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.
Sale

Natural London Blue Topaz Leaf Ring in Sterling Silver

Regular price $160 $135 (-16%)

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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.
Sale

Cordelia Natural Australian Opal Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

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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.
Sale

Evelyn Oval Cut Alexandrite Engagement Ring Set in Sterling Silver

Regular price $195 $165 (-15%)

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Lily London Blue Topaz Ring- 14K Rose Gold Vermeil by Aquamarise featuring an oval London blue topaz center stone with simulated diamond accents on a delicate rose gold vermeil band.
Sale

Lily London Blue Topaz Ring in 14K Rose Gold Vermeil

Regular price $170 $145 (-15%)

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.
Sale

Starburst Alexandrite Ring in Sterling Silver

Regular price $170 $145 (-15%)

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per 

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.
Sale

Eva Starry Night Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Ellie Princess Cut Morganite Engagement Ring in Sterling Silver
Sale

Ellie Princess Cut Morganite Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

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

Elowen Kite Cut Morganite Ring Set in Sterling Silver

Regular price $185 $155 (-16%)

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.
Sale

Elowen Kite Cut Green Moss Agate Engagement Ring Set in Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

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.
Sale

Esme Teal Moissanite Engagement Ring in Sterling Silver

Regular price $205 $175 (-15%)

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.
Sale

Celtic Aquamarine Ring Set in Sterling Silver (Fantasy Cut)

Regular price $175 $150 (-14%)

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.

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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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