The bright finished mounting has an Art-Deco design and it is circa 1930. Bezel set in the center of the ring is a 2.57 ct. (9.62 x 7.55 x 4.18 mm) oval faceted natural blue sapphire that is of very good color and quality. Bead set in the ring are a total of 108 approximate .015 ct. full cut diamonds that are VS in clarity, G-H provisional in color, and have an approximate 1.65 ct. total weight.
❤The magnificent 423 carat Logan Sapphire was cut from a crystal mined in Sri Lanka and is one of the world's largest faceted blue sapphires (it is about the size of an egg). It is the heaviest mounted gem in the National Gem Collection, and in its brooch setting is framed by twenty round brilliant-cut diamonds, totaling approximately 16 carats❤