Natural Blue Sapphire Necklace Silver925 Metal: 925 Sterling Silver Stone Size : 8*6 mm Stone : Natural Blue Sapphire We use top quality materials. Our metals are water safe After getting your jewelry in contact with the water, please clean it and make sure to D R Y it well afterward and store it in a dry place (avoid humidity). You need to keep your jewelry away from chemical products such as cleaning products with bleach, perfume, sunscreen, lotions, pools and hot tubs. Our product is packaged with love & a great gift for any occasion. You can also leave a personal note. Find more item check it out my shop ---> https://th.pinkoi.com/store/roseandmarry Thank you for taking the time to look at my shop. I hope you like my designs.