This fine, six carat opal, is filled with an iridescent rainbow of fiery color and is only matched by the unique beauty of its Art Deco, handmade platinum setting. It is a stunning, rare piece by G.T. Marsh & Co., made in the 1920s. The venerable San Francisco firm began as an Asian art and antiquities gallery who eventually hired their own jeweler to create original designs. This is a rare piece, perhaps one of their first, as most of their work involves gun metal mixed with precious gems. However, all of their pieces have a Far East influence, like the filigree design on this unique setting. A transitional cut diamond is placed next to each of the doubled prongs: at North, East, South and West. Two single cuts flank the stone on each shoulder. That makes eight small diamonds in total, adding just the right amount of glitter to a beautiful, intricately carved setting. The opal is about 3/4 inch at its longest point, and the top of the ring spans about 3/4 inch across the finger, balancing the large stone. It is currently a size 6 and is easily resized up or down.