50mm Beautiful Gemstone White Turquoise Donut Pendant Bead 1Pcs,DIY Jewelry Accessories For Necklace 2" (Aventurine) Donut Size: Approx 50mm Thickness: Approx 5mm to 8mm Weight: Approx 20g to 27g Natural Gemstone The Lapis Lazuli is colored The sea sediment jasper is colored