Material: leather Stone(s): a top-grade briolette brilliant-cut authentic Brazilian citrine, 3 high-grade rainbow fire cultured freshwater multi-color Biwa pearl, a high-grade authentic African amethyst, a high-grade authentic jasper, a very strong sky blue fire high-grade authentic moonstone, a high-grade authentic indicolite blue tourmaline cabochon, a high-grade faceted authentic chalcedony, a high-grade faceted black onyx, a high-grade faceted authentic Brazilian peridot and a high-grade faceted authentic verdelite green tourmaline Width (widest section): 2.1 inch Inner circumference: 5.7 up to 7.6 (adjustable) inches Weight: 51.9 grams