Antique 10K Victorian Carved Shell Cameo Brooch. The brooch is marked 10K on the pin clasp. It has a folding loop at the top allowing the new owner wear it as a brooch or pendant. This is a lovely, antique handcarved shell Cameo Brooch in excellent condition. It measures with the loop up 1 and 3/4 inches high. With the loop down it measures a little more than 1 and 1/2 inches high. The width is 1 and 3/8 inches. The weight is 10gms.