It is natural smoky quartz ring. The main stone is 7 mm*9 mm oval cut.weight about 1.77 carats. 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 smoky quartz rings: https://www.etsy.com/shop/godjewelry?search_query=smoky+quartz Customization is always w Quartz Rings, Gemstone Solitaire Ring, Elegant Rings, Smoky Quartz Ring, Brown Gemstone, Brown Stone, Sterling Silver Engagement Rings, Ring Oval, Elegant Ring