Amethyst Crystal Point Silver Plated Earrings - RP Exclusive with COA AM17B11-01 Amethyst crystal point earrings - Silver Plated AM17B11-01 STOCK PHOTOS. Gemstones measure approximately 18mm x 12mm -- each pair will vary slightly because these are natural stones. Earrings measure approx. 40mm in their entirety. Beautiful Natural Amethyst crystals Find more great pendants and stones in our shop. Search Rock Paradise on Amazon. We also have many bulk deals available! Direct manufacturer from Brazil, but all products ship from the USA!