HI, this ring has 3 natural, earth mined stones: one peridot, 4 mm, round shape, 0.40 carats, v v s clarity; one blue zircon, 4 mm, round shape, 0.40 carats, v v s clarity; one ruby, 4 mm, round shape, 0.40 carats, v s clarity; The ring is made in 14kt solid gold, size 7.75. I offer change the size of the ring to any size from 3 to 13 with no charge; I have 3 of this rings, one in yellow, one in white, and one in rose gold. So if you buy it, just send me a message telling me the color of gold and the size that you need. The weight of the ring is 5.8 grams; 12 mm wide. LOVE IT OR RETURN IT.