eco-friendly material, nickel free, lead free,never fadedhigh quality material with long lasting Platinum plating & Gold plating.make your fashion life happy and beautifulStandard:pass us standard test or european test as requirement.Occasion:perfect gift for any occasions that will surely make a memorable impressionPendant Size: 21 * 15cmChain Perimeter: 45cmNotes for Your Heart Necklace:1.Rub it with baby wipes: they perform miracles on jewelry.2.Then rub with a clean dry soft cotton cloth to bring back the shine. Put it inside a soft cloth pocket or fabric swath, avoid it from rubbing against other jewelry.3.To better maintain your Heart Necklace Birthstone Diamond Pendant Necklace, please take it off when you swim, take a shower, or other action involved in water.