Heirloom Platinum Double blue star sapphire cabochon ring

The provenance on this ring is mighty. My client's freat grandmother and grandfather had these stunning blue cabochon star sapphires given to them around 1900, and lived in Chicago. In around 1930 they took them to Spalding jewelers on Michigan Avenue and had them custom made into a platinum and natural white fne quality diamond halo moi et toi ring. This ring was rarely worn, and I personally delivered them to the AGL studio who deemed them non-heated, sourced from Ceylon with very fine strong stars. An absolute rare and fine treasure this ring is a size  6.75