1 Carat Diamond Earring Studs in 14k White Gold. These modern stud earrings feature 1.01 carats of princess cut diamonds and are set in 14 karat white gold. If you prefer a square shape but still want that brilliant sparkle, the princess cut is perfect for you! These studs are simple and elegant with four prongs attached to the corners, and will be a favorite of yours for many years to come.