Onyx Birthstone Cocktail Rings for Women

Romance at Midnight, Thai Marcasite and Onyx Cocktail Ring

Ritual, Black Onyx Single Stone Ring

Midnight Gloss, Unisex Sterling Silver and Onyx Cocktail Ring

Constellation of Enigma, Folk Art-Inspired Star-Shaped Onyx Cabochon Cocktail Ring

Chastity in Black, Onyx and Sterling Silver Cocktail Ring

Dragonfly's Palace, Dragonfly-Themed Sterling Silver Cocktail Ring with Onyx Gem

Magical Allure, Handcrafted Black Onyx Cocktail Ring from India

Petals of Mystery, Sterling Silver and Onyx Cocktail Ring

Lyrical Green, Artisan Crafted Green Onyx and Sterling Silver Ring

Majesty Halo, Sterling Silver and Onyx Cocktail Ring

Lover's Midnight Gaze, Hand Made Sterling Silver Onyx Cocktail Ring from India

Mountain Range, Unique Sterling Silver and Onyx Cocktail Ring

Verdant Crown, 6-Carat Green Onyx Single-Stone Ring from India

Vintage Vogue, Ornate Three-Stone Onyx Cocktail Ring

Midnight Nobility, Classic Onyx Cabochon and Sterling Silver Cocktail Ring

Green Depths, Ornate Green Onyx and Sterling Silver Cocktail Ring

Fiery Allure, Red-Orange Onyx Domed Ring Crafted in India

Goth Secrets, Sterling Silver Ring with Onyx Top Compartment

Elegant Cyclone, Spiral Pattern Onyx Cocktail Ring from India

Intrinsic, Black Onyx Cocktail Ring from India

Royal Midnight, Artisan Handmade Onyx 925 Sterling Silver Cocktail Ring

Patterned Green, Green Onyx Oval Single-Stone Ring from India

Midnight Reverie, Artisan Crafted Onyx and Sterling Silver Cocktail Ring

Glowing Sunset, Enhanced Red Onyx and Sterling Silver Cocktail Ring

Black Tablet, Square Black Onyx Cabochon Sterling Silver Cocktail Ring

Midnight Trio, Multi-Stone Onyx Cocktail Ring from India

Glittering Verdant Drop, Glittering Green Onyx Cocktail Ring from India

Grand Green, Polished and Oxidized Green Onyx Cocktail Ring from India

Magical Kite, Marquise Onyx Cocktail Ring Crafted in India

Hexagon Mystery, Men's Hexagonal Onyx Ring from Bali

Licorice Candy, Unisex Sterling Silver and Onyx Cocktail Ring

The Bold and Dramatic, Sterling Silver and Green Onyx Ring

Black Mirror, Black Onyx Sterling Silver Cocktail Ring from India

Black Depths, Sterling Silver and Onyx Cocktail Ring

Midnight Grace , Indonesian Onyx and Sterling Silver Ring

Spiraling Black, Onyx and Sterling Silver Cocktail Ring by Balinese Artisans

Glamorous Beauty in Black, Oval Onyx Cocktail Ring in Black from India

Midnight Flowers, Sterling Silver Copper Black Onyx Cocktail Ring

Amed Eclipse, Ornate Handcrafted Onyx and Silver Bali Cocktail Ring

Silence, Sterling Silver and Onyx Cocktail Ring

Chakana Swirl, Onyx and Chrysocolla Chakana Cocktail Ring from Peru

Green Ecstasy, Handmade Green Onyx 925 Sterling Silver Cocktail Ring

Glamorous Beauty in Green, Oval Onyx Cocktail Ring in Green from India