Starfish Necklace Ocean Large Starfish Necklace. Turquoise Color Jewel. Vintage Inspired Jewelry. Straight out from this sea is still charming starfish necklace. This highly detailed and textured necklace will impress! A turquoise color faceted jewel encassed in a silver plated frame adds a tranquil feeling to this starfish necklace. The jewel and starfish dangle an impressive 3 1/4" long. This dangles from a long 24" stainless steel chain. clasp.