Cuff Style Curved Design Channel Set Diamond Concave Band is 18k yellow gold piece. Ring contains natural diamonds, channel set all the way around (0.78cttw, G-SI1 quality). Band has satin/matte finish and was designed by Eternal Fine Jewels. Width of the band is 12mm, thickness on the outside edges 2mm. 100% Satisfaction Guaranteed - Return for full refund if you are not completely satisfied. FREE Jewelry Gift Box. OUR GEMSTONES ARE NATURAL - WE NEVER USE MAN-MADE OR SYNTHETIC GEMSTONES!