A rubellite and diamond ring, centring on a rectangular-cut red tourmaline, rubillite, the shoulders of radiating design set with brilliant- and single-cut diamonds, approximate dimensions of tourmaline 26.5mm x 17mm x 10.7mm c.1950 ring size P.gross weight 24.7g tourmaline is a strong pinkish red and clean with no visible chips or damage, mount is un marked but presumed 18ct white gold