Ark Angel Alchemy 5ct. Natural Amethyst Mandala Pendant in Sterling Silver 18" Chain Included The pendant is 45mm in Length by 34mm in width with a weight of 9 grams.* The amethyst stone measures 9mm in diameter.* Handmade, Polished Finish, Excellent Quality, Meticulous Detail. Includes a Free 18" Sterling Silver Diamond Cut Snake Chain and a Silver Gift Box.