Mid-Century Round Jade Stud Earrings in 18k Yellow Gold. These sweet Mid-Century stud earrings feature two round cut jades finished in 18 karat yellow gold. The gemstones have a cool-toned, classic jade green hue, with natural earthen flecks of darker green. The jades are prong set in engraved mountings of 18K yellow gold. The frames settings have a chic texture, adding a bit of dimension to the colorful jade stones.