Amulet Lucky Coin Charm Donut Green Quartz Antiqued Pendant Necklace Best Amulets Collection. Amulet Lucky Coin Charm Donut in Green Quartz Good Luck Powers Antiqued Stainless Steel Pendant on Adjustable Cord NecklaceAmulet Lucky Coin Charm Donut Green Quartz Antiqued Pendant Necklace Overall Charm Size: 30mm, Stainless Steel Lucky Coin Charm Size: 20mm Gemstone Donut is Made from Green Quartz Gemstone and Lucky Coin is made from Stainless Steel. Ready to wear with Cotton Waxed Cord which Adjusts from 15 up to 24 inches long and you may wear it any length you desire. Stainless Steel Lucky Coin is Created with Antique Black Color design. Comes with Branded Packaging.