HI, the center stone of this ring is a natural, earth mined, heated only, blue sapphire, 7x5 mm, oval shape, 0.90 carats, v v s clarity. The ring has 6 natural diamonds of 1.25 mm, round shape, SI1 clarity, color g-h, hand set. It 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 4 grams; 7 mm wide. LOVE IT OR RETURN IT.