Black Tie with a Curve. Curved 925 sterling silver rectangular cufflinks and studs are inlaid with your choice of onyx or mother of pearl gemstones for a timeless tuxedo set. Handcrafted with 925 sterling silver Available in black onyx of white mother of pearl Features an anti-tarnish finish that makes for lasting wear Packaged in black lacquered wood box and velour travel pouch, perfect for gifting and display Style # CLSS141