This is the Classic David Yurman Box Chain Necklace in Sterling Silver. This is a thicker one at 4mm wide. It is 18 inches long with Lobster Claw Clasp and 14k yellow gold DY tag. This is a Unisex piece. Wear it alone, layer it up, add an amulet or enhancer. The DY tag is stamped 585 and 925. This is in very good pre-owned condition.