Ark Angel Alchemy Sterling Silver 16ct. Natural Rainbow Moonstone Star Pendant- Free Chain & Gift Box Pendant is 53mm in Length by 39mm in width weighing 28 grams. Over 16cts. of top quality, rainbow moostone gemstones. Handmade, Polished Finish, Excellent Quality, Meticulous Detail. Limited Time Only: Free 18" Diamond Cut Snake Chain with Purchase. Includes a Free, Silver Gift Box.