The most popular size of diamond stud earrings is 1 carat TCW. This size is big enough to get visible and matches a popular funds folks have for diamond earrings. My favorite pair of one cttw studs are these stunners inside of a white gold martini environment from Blue Nile. https://waylonacyun.blogtov.com/12301929/the-best-side-of-gold-ball-stud-earring