1. Material: copper + zircon + platinum plating 2. Environmentally friendly copper material, skin-friendly to wear 3. Thickened electroplating with 3 layers of protective color, the color will not fade when worn, and the luster is as new 4. Inlaid zircon, 3A zircon cutting standard, as noble and bright as a diamond 5. Chain length: 17cm 6. Weight: 10.1 grams