This an antique Victorian conversion ring. It is made of solid 10k yellow gold and features a large natural Australian ironstone opal doublet in a low profile prong setting. The blue opal displays flashes of confetti colors as it catches light. The large opal is about 5 carats in size. The ring has a very low profile of just 2.5mm in height. In very good condition. It has been cleaned and the prong setting tightened by a jeweler. Ring size 7.  

Dimensions:Opal is 12x10mm. Ring band is 1mm. Ring size 7.