This ring features aqua, green and orange enamel set in a sterling ring with a .03 carat diamond set in 18 karat gold. The enamel colors are powdered glass set in 24 karat wires and fired in a 1400 degree kiln. There are many layers of each color fired in a kiln at least 6 times. The width of the band is 3/8" and the enamel is 5/8' wide. This ring fits a size 7.5 finger and can be sized up or down slightly. For a much larger or smaller size, allow 7-10 day for the production of a new ring.