Your cart

Your cart is empty

Gradient background transitioning from purple to pink

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.

Coffin Cut Cut Lab-Grown Diamond Engagement Ring Set in 14K Solid Yellow Gold (IGI Certified) by Aquamarise Gold, showcasing a coffin-cut lab-grown diamond with intricate milgrain detailing and accent diamonds, part of Solid Gold Engagement Rings and Fantasy-Inspired Engagement Rings collections.

Coffin Cut Moissanite Bridal Set in Solid 14K Yellow Gold

from $2,245

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 Alexandrite Engagement Ring in 14K White Gold

from $1,985

Unit price
per 

Natural Herkimer Diamond Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a hexagon-cut natural Herkimer diamond center stone flanked by triangular sparkling side stones set on a delicate diamond-accented band, part of Solid Gold Engagement Rings and Nature-Inspired Engagement Rings collections.

Natural Herkimer Diamond Engagement Ring in 14K White Gold

from $1,795

Unit price
per 

Wisteria Lab-Grown Diamond Engagement Ring Set in Solid 14K Yellow Gold (IGI Certified) by Aquamarise Gold, featuring a pear-shaped center diamond surrounded by intricately detailed leaf motifs accented with lab-grown diamonds, part of Nature-Inspired Engagement Rings and Solid Gold Jewelry collections.
Belle Blue Sapphire Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a cushion-cut blue sapphire surrounded by a pavé diamond halo and diamond-accented rose gold band.

Belle Blue Sapphire Engagement Ring in 14K Solid Rose Gold

from $2,395

Unit price
per 

Hexagon Ruby Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring a bold hexagon-cut ruby with diamond accents on elegantly curved rose gold bands.

Hexagon Ruby Engagement Ring Set in 14K Solid Rose Gold

from $2,145

Unit price
per 

Jasmine Morganite Bridal Ring Set in 14K White Gold by Aquamarise Gold featuring a round pink morganite center with diamond halo and delicate diamond-accented white gold bands.

Jasmine Morganite Bridal Ring Set in 14K White Gold

from $2,195

Unit price
per 

Green Moss Agate Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring a hexagon moss agate stone with diamond accents in a nature-inspired modern design.

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

from $2,195

Unit price
per 

Moonstone Leaf Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring an oval moonstone with delicate leaf-inspired detailing and small diamonds in a nature-inspired design.

Moonstone Leaf Engagement Ring Set in 14K Solid Rose Gold

from $2,145

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 Alexandrite Engagement Ring Set in 14K White Gold

from $2,195

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 Alexandrite Engagement Ring Set in 14K White Gold

from $2,195

Unit price
per 

Emerald Cut Morganite Engagement Ring in 14K White Gold (Hidden Halo)
Emerald Engagement Ring in 14K White Gold (Hidden Halo) by Aquamarise Gold, featuring a vibrant emerald-cut emerald on a sleek white gold band.

Emerald Engagement Ring in 14K White Gold (Hidden Halo)

from $2,175

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.

Moss Agate Engagement Ring in 14K White Gold (Hidden Halo)

from $2,175

Unit price
per 

Ellie Lab-Grown Diamond Engagement Ring in Solid 14K Yellow Gold (IGI Certified) by Aquamarise Gold featuring a princess-cut center with sparkling side diamonds in a delicate gold setting.
Ellie Lab-Grown Diamond Engagement Ring in Solid 14K Yellow Gold (IGI Certified) by Aquamarise Gold featuring a princess-cut center with sparkling side diamonds in a delicate gold setting.
Sophia Twisted Vine Morganite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a cushion-cut morganite center with diamond-accented twisted band design.

Sophia Twisted Vine Morganite Engagement Ring in 14K White Gold

from $2,095

Unit price
per 

Sophia Twisted Vine Emerald Engagement Ring in 14K White Gold by Aquamarise Gold with cushion-cut emerald and twisted vine pavé diamond band, from Solid Gold Engagement Rings collection.

Sophia Twisted Vine Emerald Engagement Ring in 14K White Gold

from $2,095

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 in 14K White Gold

from $2,145

Unit price
per 

Emerald Cut Lab-Grown Diamond Engagement Ring in Solid 14K Rose Gold (IGI Certified) by Aquamarise Gold, featuring pavé diamonds on band and halo, from Solid Gold Engagement Rings collection.

Emerald Cut Moissanite Engagement Ring in Solid 14K Rose Gold

from $2,195

Unit price
per 

Emerald Cut Lab-Grown Diamond Engagement Ring in Solid 14K Rose Gold (IGI Certified) by Aquamarise Gold, featuring pavé diamonds on band and halo, from Solid Gold Engagement Rings collection.
Emerald Cut Moissanite Engagement Ring in Solid 14K Yellow Gold with halo of round moissanite stones on a pavé band, elegant and vintage-inspired by Aquamarise Gold.
Emerald Cut Moissanite Engagement Ring in Solid 14K Yellow Gold with halo of round moissanite stones on a pavé band, elegant and vintage-inspired by Aquamarise Gold.

Emerald Cut Moissanite Engagement Ring in Solid 14K Yellow Gold

from $2,195

Unit price
per 

Teardrop White Sapphire Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a 2-carat pear-cut lab-grown white sapphire center with marquise-cut simulated diamonds arranged in a floral design on a rose gold vermeil band, part of Rose Gold Vermeil Rings, September Birthstone Jewelry, and Engagement Rings for Women collections.
Sale

Teardrop White Sapphire Ring in 14K Rose Gold Vermeil

Regular price $155 $77.50 (-50%)

Unit price
per 

Violet Hexagon Lab Sapphire Ring in Sterling Silver by Aquamarise, showcasing a vibrant hexagon-cut violet lab sapphire center stone set in a slim sterling silver band accented with delicate simulated diamonds, part of Sterling Silver Rings and September Birthstone Jewelry collections.

Sapphire & Lab Diamond Engagement Ring in 14K White Gold

from $2,685

Unit price
per 

Green Moss Agate Woodland Twirl Engagement Ring in 14K White Gold by Aquamarise Gold, featuring an oval green moss agate center stone with natural forest-like inclusions, surrounded by delicate white diamonds on a nature-inspired twirl band, part of Solid Gold Engagement Rings and Non-Traditional Gemstone Engagement Rings collections.
Oval Cut Natural Herkimer Diamond Engagement Ring in 14K White Gold by Aquamarise Gold featuring a unique oval Herkimer diamond with natural inclusions set in a delicate band accented with leaf-inspired detailing and small white stones, part of nature-inspired and alternative engagement ring collections.
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 Green Moss Agate Engagement Ring Set in 14K White Gold

from $2,495

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.
Oval Cut Lab-Grown Diamond Leaf Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold with delicate leaf motifs and sparkling band diamonds.
Oval Cut Lab-Grown Diamond Leaf Engagement Ring in 14K White Gold (IGI Certified) by Aquamarise Gold with delicate leaf motifs and sparkling band diamonds.

Oval Cut Moissanite Engagement Ring in 14K White Gold

from $1,995

Unit price
per 

Free U.S. Shipping

Ships from USA

Hassle-Free Returns

and Exchanges

Ethically Crafted

Sustainably Sourced Materials

200K+ Happy Couples

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.

From the Blog

Fairy Engagement Rings: A Complete Guide to Fae, Woodland & Elvish Designs

Fairy Engagement Rings: A Complete Guide to Fae, Woodland & Elvish Designs

Fairy engagement rings are not a trend - they are a specific aesthetic vocabulary. This is the complete guide to fae, woodland, elvish and enchanted-forest designs, written for couples who...

Read more
Moss Agate Engagement Rings Guide

Moss Agate Engagement Rings Guide

Why couples are choosing moss agate engagement rings over diamonds in 2026, what daily wear actually looks like, real pricing data, and how to pick the right stone — written...

Read more
What Is a Salt and Pepper Diamond? Complete Guide

What Is a Salt and Pepper Diamond? Complete Guide

Real natural diamonds with visible black and white inclusions — and 70-85% cheaper than colorless. The complete expert guide to what salt and pepper diamonds are, what causes the inclusions,...

Read more
Green Engagement Rings: The Complete Guide to Every Green Gemstone

Green Engagement Rings: The Complete Guide to Every Green Gemstone

Do green engagement rings hold up to daily wear? Yes — but the right green stone depends entirely on your lifestyle and setting choice. The complete breakdown of every green...

Read more