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.

Ella Blue Fire Opal Ring in Sterling Silver by Aquamarise, featuring a round blue fire opal surrounded by sparkling stones on a polished sterling silver band with delicate milgrain detailing.

Ella Blue Fire Opal Ring in Sterling Silver

$115

Unit price
per 

Vintage Natural Tanzanite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold featuring an oval violet-blue tanzanite with moissanite accents on an intricately detailed rose gold band.
Sale

Vintage Tanzanite Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Ava Oval Cut Alexandrite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vibrant oval alexandrite center and pavé diamond accents on a polished white gold band.
Sale

Ava Oval Cut Alexandrite Engagement Ring in Sterling Silver

Regular price $170 $145 (-15%)

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 Sterling Silver

$105

Unit price
per 

Ring with a large blue gemstone and smaller diamonds on a soft purple background
Sale

Cushion Cut Alexandrite Ring in Sterling Silver

Regular price $185 $155 (-16%)

Unit price
per 

Valeria Marquise Black Onyx Ring in Sterling Silver by Aquamarise featuring a marquise-cut black onyx surrounded by a halo of white stones on a polished sterling silver band.

Valeria Marquise Black Onyx Ring in Sterling Silver

$125

Unit price
per 

Natural Moonstone Teardrop Halo Ring in Sterling Silver featuring a pear-shaped moonstone surrounded by a halo of sparkling stones on a delicate sterling silver band.
Sale

Natural Moonstone Teardrop Halo Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Tacori Alexandrite Ring- 14K Rose Gold Vermeil by Aquamarise featuring an oval color-shifting alexandrite center with marquise and round accents on a rose gold vermeil band.
Sale

Tacori Alexandrite Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Emerald Cut Natural London Blue Topaz Ring in Sterling Silver by Aquamarise featuring a deep blue emerald-cut topaz with diamond accents on a sterling silver band.
Sale

Emerald Cut Natural London Blue Topaz Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Oval Cut Padparadscha Sapphire Ring in Sterling Silver by Aquamarise featuring a vibrant orange oval sapphire flanked by pear-shaped white accents on a polished sterling silver band.
Sale

Oval Cut Padparadscha Sapphire Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Diana Oval Aquamarine Engagement Ring in Sterling Silver by Aquamarise, featuring a vibrant oval aquamarine center surrounded by sparkling diamonds on a polished sterling silver band.
Sale

Diana Oval Aquamarine Engagement Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Princess Cut Blush Pink Morganite Engagement Ring in 14K Rose Gold Vermeil featuring a square-cut morganite center and pavé diamonds on a rose gold vermeil band by Aquamarise.
Sale

Princess Cut Blush Pink Morganite Engagement Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Princess Cut Alexandrite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a vibrant princess-cut alexandrite with diamond accents on a polished rose gold band.
Sale

Princess Cut Alexandrite Engagement Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Belle Cushion Cut Natural Morganite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a cushion-cut morganite surrounded by pavé diamonds on a rose gold band.
Sale

Belle Cushion Cut Morganite Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Adeline Marquise Cut Flower Aquamarine Engagement Ring in 14K White Gold featuring a marquise aquamarine center surrounded by delicate diamond accents by Aquamarise Gold.
Sale

Adeline Marquise Cut Flower Aquamarine Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Eva Black Rutilated Quartz Engagement Ring in 14K White Gold by Aquamarise Gold, featuring an oval black rutilated quartz center with marquise white gemstone accents on a delicate white gold band.
Sale

Eva Black Rutilated Quartz Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Victorian Gothic Mystic Topaz Filigree Engagement Ring in Black Ruthenium by Aquamarise featuring a marquise mystic topaz and detailed Victorian scrollwork on a black ruthenium silver band.
Sale

Victorian Gothic Mystic Topaz Filigree Engagement Ring in Black Ruthenium

Regular price $170 $145 (-15%)

Unit price
per 

Black Onyx Engagement Ring | Gothic Victorian Solitaire Silver
Sale

Victorian Gothic Scrollwork Black Onyx Ring in Black Ruthenium

Regular price $160 $135 (-16%)

Unit price
per 

Elegant ring with a red gemstone and pearls on a soft purple background
Sale

Arwen Marquise Cut Red Garnet & Pearl Ring in Black Ruthenium

Regular price $160 $135 (-16%)

Unit price
per 

Teal Moissanite Marquise Engagement Ring in 14K White Gold by Aquamarise Gold, featuring a striking marquise teal moissanite center stone flanked by sparkling colorless moissanite accents, a unique design from the Solid Gold Moissanite Engagement Rings collection.
Sale

Teal Moissanite Marquise Engagement Ring in Sterling Silver

Regular price $230 $195 (-15%)

Unit price
per 

Ring with blue heart-shaped gemstone and pearls on a gradient background
Sale

Briar Blue Sapphire and Pearl Engagement Ring Set in Black Ruthenium

Regular price $175 $150 (-14%)

Unit price
per 

Borealis Tanzanite & Teal Sapphire Couples Ring Set (Mountain Range) by Aquamarise, showcasing a marquise-cut tanzanite flanked by teal sapphire heart accents and delicate diamond details, part of Matching Couples' Rings and September and December Birthstone Jewelry collections.
Sale

Elain Tanzanite & Teal Sapphire Fairy Ring in Sterling Silver

Regular price $160 $135 (-16%)

Unit price
per 

Natural Tanzanite Chevron Ring Set in 14K White Gold (two-piece) by Aquamarise Gold featuring a marquise-cut violet-blue tanzanite gemstone framed by a chevron-shaped band adorned with sparkling white diamonds, part of Solid Gold Engagement Rings and December Birthstone collections.
Sale

Marquise Tanzanite Ring Set in Sterling Silver

Regular price $175 $150 (-14%)

Unit price
per 

A lab-grown diamond and amethyst ring set in 14K white gold, featuring a teardrop-shaped center diamond surrounded by a halo of round amethyst stones on a textured background.
Skye Kite® Peacock Fire Opal & Emerald Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold featuring a vibrant kite-shaped opal and sparkling emeralds in a unique rose gold setting.
Green Moss Agate & Emerald Leaf Ring in 14K Yellow Gold Vermeil
Hexagon Moss Agate Leaf Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold, featuring a hexagon-cut green moss agate center stone with leaf-shaped moss agate accents and sparkling diamonds on a polished rose gold band.
Sale

Hexagon Green Moss Agate Leaf Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Oval Cut Lab-Grown Diamond & Amethyst Leaf Engagement Ring Set in 14K White Gold (IGI Certified) featuring a detailed nature-inspired band with sparkling lab-grown diamonds and purple amethyst accents, crafted by Aquamarise Gold.
Esme Green Moss Agate Fairy Engagement Ring in 14K Solid Yellow Gold by Aquamarise Gold, featuring an oval moss agate with diamond accents and intricate yellow gold detailing.
Green Fire Opal Leaf Engagement Ring in 14K Rose Gold Vermeil featuring a vibrant green fire opal center, opalescent side stones, and intricate leaf engraving by Aquamarise.
Sale

Green Fire Opal Leaf Engagement Ring in 14K Rose Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

Coffin Cut Blue Sapphire and Gold Leaf Couples Ring Set featuring a vibrant blue coffin-cut sapphire with black gemstone accents in gold by Aquamarise, perfect for matching couples rings.
Sale

Coffin Cut Blue Sapphire & Black Onyx Engagement Ring in 14K Yellow Gold Vermeil

Regular price $175 $150 (-14%)

Unit price
per 

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.
Sale

Toi Et Moi Emerald & Pear Diamond Ring in Sterling Silver

Regular price $155 $108.50 (-30%)

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