Diamond Cluster Halo Stud Earrings in 14k White GoldDiamond Cluster Halo Stud Earrings in 14k White Gold. These diamond cluster earrings feature . 70 carats of round brilliant cut diamonds of various sizes set in 14 karat white gold. If you look closely you can see four larger stones clustered evenly together in the middle with a thin halo of small diamonds encircling the group. A design like this is a great way to achieve a big diamond look at a smaller price point!