This is an extraordinary Edwardian platinum, ruby, and diamond ring. The 1.80 carat ruby, which has not undergone heat treatment, is a beautiful color. It is red with undertones of pink. The lack of heat treatment makes this ruby very rare; there are not many rubies on the market today that that have not undergone traditional treatment methods. The simple and elegant platinum setting does a wonderful job of highlighting the ruby. There are subtle diamond accents set in the vintage platinum mounting, but the star of the show is undoubtedly the cushion cut ruby. The ruby is accompanied by an A.G.T. A. certificate. This is a ring any admirer of rubies and any lover of rare gemstones would love to add to their collections!