Ball Ceylon sapphire and diamonds ring In 18K (750) white gold set with an oval, intense blue Ceylon sapphire, certified without any indication of heating, shouldered by two brilliant-cut diamonds. hallmark: 0750 size of finger: 59 (US: 8 3/4) diamond, estimated total weight: 0.70 ct approx. sapphire, total weight: 5.70 ct (according to certificate) ALGT certificate: 61025078 dated 16 October 2024 visible damage to one edge and slight chipping Weight : 34.9 g