Amulet Lucky Coin Shaped Donut Green Quartz Charm Magic and Protection Powers Pendant Necklace Best Amulets Collection. Amulet Lucky Coin Shaped Donut Green Quartz Charm Magic and Protection Powers NecklaceAmulet Lucky Coin Shaped Donut Green Quartz Charm Magic and Protection Powers Pendant Necklace Very Popular and Lucky Coin Shaped Donut Pendant Necklace Size: 30mm. Made from Cute Green Quartz Gemstone. Natural Quartz is Dyed in Green Color. Treatment is Not Permanent. Necklace Size: Adjustable Cord, Shortest: 15 inches, Longest: 24 inches Comes with Branded Packaging