Shop › St. George Island oyster shell necklace Image 1 of 1 St. George Island oyster shell necklace $15.00 Only 1 available This necklace is made from an oyster shell found on St. George Island, Florida, and is on a raw brown leather cord. Add To Cart Added! This necklace is made from an oyster shell found on St. George Island, Florida, and is on a raw brown leather cord.