If you could contain the entire galaxy in a single stone, this Austalian black opal would be it! Every color of the rainbow is represented in its celestial glow. Its halo of diamonds adds to its starry effect. They dynamically alternate in setting height, giving it a unique twinkle and added dimension. They are all full cuts, total a carat weight of about .90, are a near colorless G grade, and range in VS-SI clarity. It is hard to date, but we believe it to be made between the 1950s and 80s in 14k yellow gold. The top measures 7/8 x 3/4 inch. The opal weighs between 7 and 8 carats. The ring is a size 7 1/4, and is easily sizable, up or down, upon request.