Gold Plated Bronze charm St. John Necklace. Beautiful golf plated bronze charm Necklace with tiny heart in the front and ST. John Map in the back. Lovely keepsake Necklace to have as a Beautiful memory of the Island. Buy yours today! Charm measures 1/2” diameter. 16” gold filled chain. Gold filled clasp made in Italy. With two-thirds of the island designated as a national park, St. John has some of the world's most beautiful beaches, like the much-beloved Trunk Bay. This beach is renowned for its crystal sands and underwater nature trail, and it just one of the many memorable beaches on St. John.