Ring with fine sapphire and diamonds together approx. 1,2 ct

Ring with fine sapphire and diamonds in total ca. 1.2 ct, brilliant- and navette-cut, ca. 3.8 ct, fine rutile visible, no indication of heating visible, platinum, 9 gr, ring size 53, 1970s, minor signs of wear, sapphire slightly chipped at the girdle. Sapphire with high colour saturation and a hue of purple.