14K Yellow Gold and 1 ct Moissnite (diamond) ring. Moissanite is just like a real diamond, and can only be detected by a jeweler with a Moissanite tester. It does not dull like CZ, and looks just like the real thing. It is approx a size 7 1/2 and the band is squared off on the back, and it has wavy sides. The mark in the back is K and a couple of other marks. I guarantee it to be 14K. It is 'Fab' on the finger.