It is a lab sapphire ring. The main stone is a 6 mm*8mm emerald cut lab sapphire, weight about 1.50 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 Sapphire is the birthstone of September. More sapphire rings: https://www.etsy.com/shop/godjewelry?ref=listing-shop2-all-items-count§ion_id=20715031 Customization is always welcome and please feel free to contact with me if you have any design ideas!