Purple Sapphire Diamond Ring, Art Deco 1920 A delicate ring set with a cushion-cut purple Sapphire of 6.32 carats, Ceylon, not treated, flanked by 6 small diamonds totalling approx. 0.05 ct, in Platinum, ring size: 58, 4.7 g. Hallmarks: 570 Pt 10 Stock Number: 2181 GGTL Laboratories verbal 26-B-8915 Natural purple Sapphire, unheated (NTE) Sri Lanka. Gemmological Certification Services (London, UK) Natural colour-change sapphire Sri Lanka (Ceylon) No indications of heating.
