These rose gold endless hoop earrings were made in Soviet Union back in the 1980s. Just a perfect pair of hoops! Diameter - 7/8 (just under an inch), weight - 2.3 grams. The beauty of the vintage Soviet gold marked 583 (equivalent of 14K) is that USSR jewelry factories followed strict requirements not only for the gold content, but also for other alloy components. That special alloy was created to make gold jewelry more durable.