Ring in 18ct white gold (750 thousandths) adorned with 31 brilliant-cut round diamonds of approx. 0.02ct. i.e. 0.60ct in total

White gold : White gold is an alloy of pure gold with copper, Zinc, Palladium or nickel.
Diamond : In mineralogy, diamond is an extremely rare, precious and hard (named after the ancient Greek "unbreakable") metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice.