Hot Diamonds X JAC JOSSA Beach Pebble Necklace - DN150: It's crafted from 925 sterling silver with an 18ct gold plating. This delicate belcher chain features 7 pebble-shaped charms; one pebble is hand-set with a clear diamond. The chain is adjustable, measuring approximately 32-39cm in length, with a lobster claw clasp to fasten.