HI, the center stone of this ring is a natural, earth mined, cat's eye alexandrite, 6.5x4.7 mm, 1.25 carats. The ring has 12 natural diamonds, SI1 clarity, color g-h, 1.25 mm, round shape, 0.12 cttw. The ring is made in 14kt solid white gold, 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 telling me the size that you need or if you want the ring like is. The weight of the ring is 5.6 grams; 8.5 mm wide. LOVE IT OR RETURN IT.