HI, the center stone of this ring is a natural, earth mined, colombian emerald, 6x4 mm, oval shape, 0.40 carats, v s clarity. The ring has 2 natural australian, color play opal on the sides, 5x3 mm, oval cabochon, 0.40 cttw. This ring also has 4 natural diamonds, 1.5 mm, round shape, SI1 clarity, color g-h, 0.05 cttw. The ring is made in 14kt solid white gold. The size of the ring is 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, for a faster service please send me a message telling me the size that you need or if you want the ring like is. The weight of the ring is 3.5 grams; 5.5 mm wide. LOVE IT OR RETURN IT.