Certified 4.66 Carats Unheated Ceylon Sapphire Diamonds Platinum White Gold Ring

Important platinum and white gold ring centred by a cushion-cut unheated sapphire surrounded by old-cut diamonds.
Weight of the sapphire: 4.66 carats (sapphire unset)
With World Gemological Institute certificate, specifying natural sapphire, no indication of treatment, origin Ceylon.
Natural stones may have a few characteristic inclusions, some of which are visible to the naked eye, such as butterfly wings or frost.
Total estimated weight of diamonds: 1.25 carats
Diamond Quality : H/SI
Dimensions: 17.68 x 15.71 x 7.78 mm (0.696 x 0.618 x 0.306 inch)
Finger size: 56.5 (US: 7 3/4)
French work, early 20th century
Total weight of the ring : 6.73 g
18-carat white gold, 750/1000th (owl hallmark) and platinum 850/1000th, (mascaron hallmark)
Although we take care of the quality of our antique jewelry, they have a history. As a result, some gems may be slightly polished and the metal may have a slight patina.