HI, this ring has 2 natural earth mined in the center: one blue zircon, 6x4 mm, oval shape, 0.85 carats, v v s clarity, one mandarin garnet, 6x4 mm, oval shape, 0.85 carats, v v s clarity. The ring has 4 natural black onyx on the sides, 2.5 mm, round shape, 0.20 cttw. It is made in .925 sterling silver, size 7.75. I offer change the size of the ring to any size from 3 to 13 with no extra charge, so if you buy it, just send me a message with the size that you need, or if you want the ring like is. LOVE IT OR RETURN IT.