Cabochon Cut Opal Stud Earrings in 14k Yellow GoldCabochon Cut Opal Stud Earrings in 14k Yellow Gold. These delightful stud earrings feature two (2) . 80 carat cabochon cut opals which are set in 14 karat yellow gold. The opals are held securely with six (6) prongs that also add a nice warm yellow contrast to the creamy opals. These would be perfect for everyday wear and would make a fabulous gift to yourself or a loved one.