Native American Navajo Sterling Silver Purple Spiny Oyster Necklace 22 Set 467. Beautifully and artistically crafted this necklace laced with Large Purple Spiny Oyster Beads are collectors choice. With Sterling Silver Beads and Findings this beautiful Necklace is a one of a kind. The Purple Spiny Oyster beads add a class of its own.Size of Spiny Oyster beads 6 mm. Please let us know the problem before posting a bad feedback. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Necklaces & Pendants". The seller is "mashasilver" and is located in this country: US. This item can be shipped worldwide.