Ark Angel Alchemy Sterling Silver Natural 12ct. Large Purple Amethyst Pendant 43mm in Length by 20mm in width, 7 grams.* The central, oval amethyst is 18mm x 13mm. Over 12 carats.* Includes oxidized details. Natural Amethyst Gemstones. Handmade, Polished Finish, Excellent Quality, Meticulous Detail.