Leilão Bidspirit | A COLOR-CHANGE SAPPHIRE AND DIAMOND

A COLOR-CHANGE SAPPHIRE AND DIAMOND RING - Of tapered bombé design, set to the center with a cushion-cut color-change sapphire weighing 9.26 carats, flanked by pear-shaped diamonds, within an openwork pear-shaped and brilliant-cut diamond surround, extending to the rim and half-hoop, mounted in 18K white gold, diamonds weighing approximately 5.45 carats in total, ring size 6 Accompanied by a report from the Gemresearch SwissLab, stating that the 9.26 carat natural sapphire shows color-changing in different lights: blue in daylight to purple in incandescent light, originates from Sri Lanka and has no indication of thermal treatment, report no. GRS2018-108395, dated 12th October 2018 9.26克拉枕形斯里蘭卡天然變色藍寶石戒指，配以鑽石，鑲18K白金，鑽石共重約5.45克拉，戒指尺 寸6，附GRS證書 US$25,000 - 38,000