Amethyst Drop CharmAn oval amethyst at 75mm and a white CZ accent in a 23. 512mm 925 sterling silver drop setting the Amethyst Drop is the largest of the oval amethyst charms. More stone, more colour, more presence as a pendant. At 1. 03g, still a lightweight charm despite the increased stone size. The drop form gives the charm movement when worn on a bracelet; on a chain, it functions as a miniature pendant necklace. For adding deep colour to a silver charm collection