For your consideration this Australian opal ring marked "925". The "925" mark indicates the metal is sterling silver. The ring features a prominent, smooth, dark denim blue, round Australian opal stone set in a jaw tooth serrated bezel. Surrounding the stone is intricate silver work, including a braided detail and an outer border composed of a series of connected, decorative silver loops or scallops, giving it a floral or sunburst appearance. The band of the ring is a simple, polished silver band. The ring measurements as seen in the photos are .43 circumference (face of the ring) x .23”D. The band measures 1.6mm and the total weight is 2.4 gms.