We are pleased to inform you that our products have a silver content of over 92.5%, meeting industry standards. Our Certificate of Authentication is available upon request with the certificate number ZGDOINKEFO55SF. This NECKLACES model (LGKGL1317) is made of 925 Sterling Silver with 18K Gold Plating, featuring a Pavé Crystal Round Star design. The O-chain measures 40+5cm and the necklace weighs 1.3g, making it an exquisite and lightweight choice for any occasion. Available in White gold and gold, it is a fine and fashionable accessory perfect for women. We take pride in providing quality products to our valued customers.