Gold color ring with two hearts and a crystal between No idea what material, I don't see any engravings. I've heard that the crystal in the center is diamond, but I have no idea, never had someone truly professional look at it. It is pretty, it has stayed in excellent condition for many years despite being worn so if I had to guess it is a sturdy metal. Just a disclaimer though I don't know what this ring truly is made of hence the somewhat lower price.