Base Metal: Recycled 925 Silver Ring (Sterling Silver) 14K Gold Plated or 14k Gold Vermeil Rings come in sizes 6, 7, 8 Thickness 1mm - 1.8mm CZ 1.2mm*7Pcs CZ 1.3mm*7Pcs CZ 1.6mm*3Pcs CZ 1.75mm*2Pcs