PAIR 18K YELLOW GOLD, DIAMOND, SAPPHIRE AND BLUE TOPAZ TRIANGULAR DOOR KNOCKER EARRINGS. Geometric anchor set with triangle of three brilliant-cut diamonds suspends bezel-set topaz within frame set with additional round diamonds and pair sapphire cabochon accents. Post/clip backs. L: 1 3/8". Gross wt.: 1 oz. Estimate $750-1,000