Weighing 3.5 g, these solid 18 K yellow gold earrings hold brilliantly colored opals that will match almost any outfit. The earrings measure approximately 20 mm x 10 mm and have solid gold posts towards the top. The photos do not do the stones justice. One of the earrings is marked 18 K and the other is marked 750 (indicating 18K). You could wear these every day or to a special event. Please take a moment to view my other items for sale. I add new pieces frequently.