1/2 (0.46-0.55) (0.48-0.55) Ct Black Diamond Men's Stud Single Stud Earring Great gift for an April born. The round black diamond is AA quality securely prong-set in 14K Yellow Gold. AA grade black diamonds have a nice black color, are proportionately cut and have a fairly clean table that may show minor white spots or flaws. Matching stud available 30 Day No questions asked Return Policy Free-Shipping within US April Birthstone/Men's Jewelry