Onyx Gemstone Single Stone Rings

Subtly Sweet, Onyx Solitaire Ring in 18k Gold Plated Sterling Silver

Piece of Night, Handcrafted Onyx and Sterling Silver Single Stone Ring

Princess Gem, Handmade Onyx Single-Stone Ring from Bali

Green with Envy, Sterling Silver Cocktail Ring with Green Onyx Cabochon

Midnight Hearts, Black Onyx and Sterling Silver Cocktail Ring

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

Majestic Green, Polished Sterling Silver and Green Onyx Single Stone Ring

Black Tablet, Square Black Onyx Cabochon Sterling Silver Cocktail Ring

Intrinsic, Black Onyx Cocktail Ring from India

Green Depths, Ornate Green Onyx and Sterling Silver Cocktail Ring

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

Sunset Dome, Red-Orange Onyx Single-Stone Ring from India

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

Glittering Verdant Drop, Glittering Green Onyx Cocktail Ring from India

Royal Rawa, Dramatic Onyx and Sterling Silver Cocktail Ring

Might, Modern Black Onyx Ring Crafted in India

Triple Crown, Tiger's Eye and Carnelian Single Stone Rings (Set of 3)

Crowned in Glory in Black, Oval Cabochon of Black Onyx Cocktail Ring

Magical Orb, Black Onyx Cabochon Sterling Silver Ring

Be Good, Handmade Onyx 925 Sterling Silver Cocktail Ring Indonesia

Glistening Fire, 14-Carat Red-Orange Onyx Single-Stone Ring from India

Mountain Range, Unique Sterling Silver and Onyx Cocktail Ring

Power Grid, Men's Sterling Silver Ring with Onyx

Dark Glimmer, 14-Carat Black Onyx Single-Stone Ring from India

Black Mirror, Black Onyx Sterling Silver Cocktail Ring from India

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

Underground Rumor, Rainbow Moonstone and Onyx Single Stone Rings (Set of 3)

New Moon at Midnight, Black Onyx and Oxidized Sterling Silver Ring

Rapt, Onyx Cabochon Cocktail Ring from India

Courage Amulet, Sterling Silver Cocktail Ring with Black Onyx Cabochon

Regal Royal, Marquise Bezel Set Black Onyx Cabochon Cocktail Ring

Deep Soul, Black Onyx Single-Stone Ring Crafted in Bali

Crowned in Glory in Green, Oval Cabochon of Green Onyx Cocktail Ring

Vernal Pool, Green Onyx Cabochon Single Stone Ring

Midnight Bliss, Oval Black Onyx Cabochon Sterling Silver Cocktail Ring

Green Ecstasy, Handmade Green Onyx 925 Sterling Silver Cocktail Ring

Handsome Allure, Men's Oxidized Sterling Silver and Black Onyx Ring

Gleaming Green, Marquise Green Onyx Cabochon Sterling Silver Cocktail Ring