This 20" long necklace is made of a medley of Tahitian pearls and keshi pearls, various sea shells and gold vermeil beads. The pearls range in size 7-12.5mm. The clasp is a gold plated bean clasp, email us at the time of purchase if you'd prefer a different clasp. This piece is one of my favorites of this new year. ID#KDN36481/KDJ4000/2/21/24