Big Island of Hawaii Puka Shell Neckless the rare (Tiger Puka Puka) is the largest puka shells near 1" diameter the weight of the neckless is 9.8 oz the Hawaiian Islands do not have a large amount of shells to be found because of the current around them, distorying most of the shells that land on our beaches. this Puka neckless is a beauty and rare Tiger size Shell 🐚 find. Aloha