Genuine black onyx gemstones are set by hand onto round 18 Karat white gold tuxedo studs. Sparkling diamonds add unexpected flash while perfectly complementing the natural Black Onyx 18 karat white gold Genuine black onyx White diamond pavé Cufflink total diamond carat weight: 0.60; Studs total diamond carat weight: 0.23 Cufflinks (16mm width) and tuxedo studs (10mm) Whale backs for cufflinks, flip back for studs Packaged in black lacquered wood display box & a velour gifting travel pouch perfect for home display Also available as cufflinks only Style # GCLSS1573OX-W Pre Order 6 week delivery