This is a lab created Sapphire Square Cut / shape gemstone. Material: 925 sterling silver Stone Size: 8mm X 8mm Square & Emerald Cut Stone Weight: 2.2 ct. Clarity Grade : VVS You can also have a look at other beautiful designs at my Shop Home here: https://www.etsy.com/in-en/shop/LuxJewelryArt?ref=seller-platform-mcnav Customization is always welcome and please feel free to contact me if you have any design ideas!