This Ruby/Pink Sapphire necklace is made of 3 to 3-1/2 beads, with a 13mm round black freshwater cultured Pearl at the center. Some may call it Ruby, some may call it Pink Sapphire as the color is right on the border. In any event, it's a lovely necklace! It may be worn in a length from 17-1/4" to 18-3/4" long. A small lobster clasp keeps this necklace secure!