Antique 18k White Gold Diamonds and Sapphires Pendant Cross .80 Carat Rose Cut Diamonds and 2 Sapphires. The diamonds are old rose cut diamonds all are in great condition. The cross measures 2-1/4 inches from the bottom of the cross to the top of the loop. From side to side it measures 1-1/4 inches wide. Weight 4.2 grams.