These stud earrings feature emerald-cut Blue Topaz gemstones (.72 carats) set in 14 karat yellow gold with a surrounding halo of 28 round brilliant cut diamonds (1.5mm each, totaling .42 carats). The rectangular Blue Topaz sits in a bezel setting that holds it firmly in place, while the diamond border adds extra sparkle that makes the blue center pop even more. The earrings come with post backs that keep them positioned on the ear.