Handcrafted of 22k yellow-gold-plated brass, Tohum Design's Beach Shell necklace is strung with clamshell-shaped links. This ocean-inspired style features a sliding knot closure for a customizable fit. Handmade. From the Concha Collection. 22k yellow-gold-plated brass. 14 to 32 chain length (approximately). Sliding knot closure. Made in Turkey. TOHUM DESIGN Women's Beach Shell Necklace - Gold A great designer gift. Shop TOHUM DESIGN at Barneys New York.