It is a Swiss blue topaz ring. The main stone is 7mm*7mm square cut, weight about 2.31carats. The basic metal is sterling silver and plated with rhodium. To change the metal to a solid gold (white/rose) or platinum is also available, please ask for a quotation if you want. You can also go to my shop Home for more elegant rings: https://www.etsy.com/shop/godjewelry?ref=hdr_shop_menu More rings: https://www.etsy.com/shop/godjewelry?ref=l2-shop-header-avatar Customization is always welcome and plea Formal Princess Cut Topaz Ring With Prong Setting, Emerald Cut Topaz Promise Ring In Fine Jewelry Style, Fine Jewelry Emerald Cut Topaz Promise Ring, Emerald Cut Topaz Promise Ring Fine Jewelry, Emerald Cut Topaz Ring With Accent Stones For Promise, Blue Topaz Princess Cut Ring With Center Stone, Princess Cut Topaz Ring With Accent Stones, Princess Cut Blue Topaz Ring With Center Stone, Formal Blue Topaz Asscher Cut Ring