Mid-Century Round Jade Stud Earrings in 18k Yellow GoldMid 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.