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.

Feyra Lab-Grown Diamond & Amethyst Ring Set- 14K Solid Yellow Gold (IGI Certified) by Aquamarise Gold, featuring a pear-shaped lab-grown diamond center stone surrounded by marquise and round amethyst accents on an intricately designed yellow gold band, from Solid Gold Engagement Rings, February Birthstone, and Nature-Inspired Engagement Rings collections.
Elegant ring with purple gemstones on a reflective surface

Feyra Starry Night & Amethyst Ring Set in 14K White Gold

from $2,495

Unit price
per 

Moissanite & Crescent Moon Constellation Couples Ring Set featuring a marquise-cut moissanite center flanked by crescent and star accents in polished sterling silver by Aquamarise, part of Matching Couples' Rings and Best Selling Jewelry collections.
Maeve Green Moss Agate Ring- 14K Solid Rose Gold by Aquamarise Gold, featuring an oval green moss agate gemstone set in an ornate rose gold band accented with sparkling white stones, blending vintage charm with nature-inspired elegance.
Sale

Maeve Green Moss Agate Ring in 14K Rose Gold Vermeil

Regular price $170 $145 (-15%)

Unit price
per 

Skye Kite® Natural Amethyst Engagement Ring Set in 14K Solid Rose Gold featuring a kite-cut amethyst center stone with marquise and round accent diamonds by Aquamarise Gold.
Hexagon Coffin Green Moss Agate Couples Ring Set featuring silver bands with green moss agate stones and sparkling accents, from Aquamarise’s Matching Couples' Rings collection.
Marquise Cut Lab-Grown Diamond Engagement Ring Set in 14K Solid Yellow Gold (IGI Certified) by Aquamarise Gold, featuring a chevron-shaped diamond band paired with a marquise-cut center diamond, part of Solid Gold Engagement Rings and April Birthstone Jewelry collections.
An elegant two-piece engagement ring set in 14K white gold featuring a teardrop-shaped lab-grown alexandrite centerpiece with accompanying leaf motifs and small accent stones.
Skye Kite® Natural Red Garnet Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a kite-shaped red garnet with diamond accents in a modern, elegant design.
Alice Fireworks Cut Light Green Sapphire Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a pear-cut light green sapphire surrounded by a sparkling diamond halo on an intricately twisted white gold band, part of Solid Gold Engagement Rings and September Birthstone Jewelry collections.
Elegant ring with red gemstone and diamonds on a textured surface with blurred purple background
Aquamarine & Fire Opal Leaf Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring an oval aquamarine center with white fire opal accents on a rose gold leaf-inspired band.
Aquamarine & Moonstone Fairy Leaf Ring Set- Sterling Silver featuring an ice-blue aquamarine center stone with delicate moonstone accents in a nature-inspired sterling silver design by Aquamarise.
Green Moss Agate & Fire Opal Engagement Ring- 14K White Gold featuring a pear-shaped green moss agate center stone surrounded by sparkling white diamonds and accented with glowing fire opal marquise shapes, designed by Aquamarise Gold.
Sale

Teardrop Green Moss Agate & Fire Opal Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Skye Kite® Green Moss Agate Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring a kite-shaped moss agate center and sparkling stones on elegant rose gold bands.
Lab-Grown Diamond Leaf Engagement Ring in 14K Solid Yellow Gold (IGI Certified) by Aquamarise Gold featuring intricate leaf design with sparkling diamonds and vibrant pink gemstones.
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.
Sale

Toi Et Moi Salt & Pepper Herkimer Diamond & Onyx Ring in Sterling Silver

Regular price $160 $112 (-30%)

Unit price
per 

Toi Et Moi Blue Moissanite Two Stone Engagement Ring in 14K White Gold by Aquamarise Gold, featuring pear-shaped blue and white moissanite stones in a delicate white gold band.
Sale

Toi Et Moi Blue Moissanite Engagement Ring in Sterling Silver

Regular price $205 $175 (-15%)

Unit price
per 

Hexagon Emerald Ring Set- 14K Solid Rose Gold by Aquamarise Gold, featuring a geometric-cut lab-grown emerald flanked by moissanite accents in a modern, elegant rose gold design.
Sale

Hexagon Emerald Ring Set in 14K Rose Gold Vermeil

Regular price $185 $155 (-16%)

Unit price
per 

Geometric Kite Cut Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold, showcasing a striking color-shifting kite-cut gemstone in a minimalist white gold band.
Sale

Minimalist Kite Cut Alexandrite Engagement Ring in Sterling Silver

Regular price $170 $145 (-15%)

Unit price
per 

Amy Vintage Emerald Ring Set in Sterling Silver by Aquamarise featuring pear-shaped emeralds and sparkling diamond accents on an elegant sterling silver band with a vintage-inspired design.
Sale

Amy Vintage Emerald Ring Set in Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

Black Onyx Hexagon Ring in Sterling Silver
Sale

Black Onyx Hexagon Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Cushion Cut Blue Sapphire Engagement Ring in Sterling Silver by Aquamarise, featuring a deep blue lab-grown sapphire surrounded by sparkling accents on a rhodium-finished 925 sterling silver band.
Sale

Cushion Cut Blue Sapphire Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Iris Oval Aquamarine Engagement Ring in 14K Solid Rose Gold, featuring a sparkling oval aquamarine center surrounded by a halo of diamonds on a delicate rose gold band by Aquamarise Gold.
Sale

Iris Oval Aquamarine Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Three Stone Halo Vintage Aquamarine Engagement Ring in Sterling Silver by Aquamarise, featuring oval aquamarine stones surrounded by pavé halos on a twisted infinity silver band.
Sale

Three Stone Halo Vintage Aquamarine Engagement Ring in Sterling Silver

Regular price $140 $70 (-50%)

Unit price
per 

Vintage Octagon Halo Round Aquamarine Ring in Sterling Silver by Aquamarise, featuring a 0.85 carat aquamarine center with baguette and round simulated diamonds in a vintage halo design.
Sale

Vintage Octagon Halo Round Aquamarine Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Eva Oval Cut Lab-Grown Alexandrite Ring in Sterling Silver by Aquamarise featuring an oval alexandrite center stone with marquise-cut side stones in a nature-inspired vintage floral design.

Eva Alexandrite Engagement Ring in 14K White Gold

from $2,185

Unit price
per 

Everly Three Stone Oval Morganite Ring in 14K Rose Gold Vermeil by Aquamarise, featuring a 2 carat oval morganite center flanked by two simulated diamond accents in a classic setting.
Sale

Everly Three Stone Oval Morganite Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Cordelia Oval Cut Blue Sapphire Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vibrant blue sapphire center surrounded by intricate diamond accents and vintage-inspired band detailing.
Sale

Cordelia Vintage Blue Sapphire Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Aurora Alexandrite Ring - Sterling Silver by Aquamarise featuring a vintage-inspired oval alexandrite center with halo of simulated diamonds in a delicate rhodium-finished sterling silver band.

Aurora Alexandrite Ring - Sterling Silver

$135

Unit price
per 

Aurora Royal Blue Sapphire Ring- Sterling Silver featuring a vintage-inspired royal blue sapphire center with sparkling simulated diamond accents on a sterling silver band by Aquamarise.

Aurora Royal Blue Sapphire Ring- Sterling Silver

$115

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