Black onyx, diamond, and gold starburst orb charm gold necklace – Thea Grant
Petite Piazza Necklace in Gold with Onyx – DelBrenna
Vintage Van Cleef & Arpels Onyx Pendant Necklace in Yellow Gold at Susannah Lovis Jewellers
Lucy Williams Square Onyx Gemstone Necklace | Sterling Silver/Black On | Missoma
Tiffany T diamond and black onyx circle pendant in 18k gold, small. | Tiffany & Co.
Silver Onyx Pendant | Mens Silver Necklaces - By Twistedpendant
Black Onyx Necklace - Danique Jewelry
Amazon.com: 14K Gold Onyx Necklace - 14K Solid Yellow Gold Pendant, Dainty 12mm Round Black Onyx Gemstone, December Birthstone Handmade Minimalist Jewelry, Leo Star Sign Birthday Gift for Classy Women : Handmade
Black Onyx Necklace – Luv Mei
Paolo Onyx Pendant Necklace, Sterling Silver | Men's Necklaces | Miansai
Garland Silver Black Onyx Necklace – NAJO
Round Stilla Black Onyx Pendant Necklace in Yellow Gold Vermeil | Astley Clarke