Black Hills Gold Silver Whale Tail Necklace Beautiful!! Authentic Black Hills Gold Silver Whale Tail Necklace in the Black Hills Gold Jewelry style of 12k pink-gold and 12k green-gold leaves on the ends of the points of the Sterling Silver Whale Tail. Whale Tail Pendant comes on an 18 inch Sterling Silver Rope Chain with a spring ring clasp for ease and comfort. Size of the Whale Tail Pendant is 1 1/16" x 1" inch. Black Hills Gold Jewelry becomes brighter and prettier the more it is worn. Clean with soft brush and mild soap only. Limited Lifetime Warranty from the manufacture