LOT 620 | A YELLOW SAPPHIRE, ONYX AND DIAMOND RING
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Set with an octagonal step-cut yellow sapphire enhanced by the single-cut diamond border, flanked by elongated baguette-cut onyx shoulders to the quarter-hoop, mounted in platinum, circa 1900, sapphire weighing approximately 21.60 carats, measuring 15.15 x 13.50 x 11.65 mm, ring size 7
Accompanied by a report from the Gemological Institute of America, stating that the natural sapphire is yellow color, originated from Sri Lanka and has no indications of heating, report no. GIA1142535528, dated 9th April 2012
約21.60克拉八角形梯式切磨斯里蘭卡天然黃色藍寶石戒指，約1900年製作，配以小鑽，鑲鉑金，黃色藍寶石尺寸15.15x13.50x11.65毫米，戒指尺寸7，附GIA證書
ESTIMATES:
HK$ 200,000 - 300,000 US$ 25,000 - 38,000
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