These 18-Karat White Gold Cufflinks breathe the excitement of crystal and champagne. Created from the perfect formal color combination of the designer black gown and tiara of brilliantly sparkling diamonds, they will accompany you anywhere with regal grace. A band of 18-karat white gold is wrapped around a slab of genuine jet-black onyx with a convex face. The white gold rises to form the setting for a strip of diamonds, with a combined weight of .53 ctw. The dimensions of each cufflink are 7/8 by 3/4 inches. The swivel-back closure of 18-karat white gold ensures that they remain immaculately in place.