A Very Fine Sapphire and Diamond Ring

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  • Condition Report

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    • One step-cut sapphire, 17.62 carats

    • Flanked by baguette and triangular-shaped diamonds

    • 18 karat white gold

    • Size 6¾

    (17.62-carat Sapphire)
    Gübelin report, numbered 18097160, dated 14 September 2018, Burma, no indications of heating, Royal Blue colour.
    SSEF report, numbered 103190, dated 5 October 2018, Burma, no indications of heating.

    附 瑞士Gübelin 及 SSEF證書

  • Catalogue Essay

    Burma has been home to the world’s finest rubies and sapphires since ancient times, and its sapphires are particularly known for their superb, rich and vibrant blue hue, which is described as ‘Royal Blue’ in the trade. This name has since then become synonymous with sapphires of the highest caliber.
    Modern Burmese mines yield very few sapphires of gem-quality, even fewer of which exceeds 10 carats after cutting and polishing. This exceptional sapphire that is free from any heat treatment weighs close to 20 carats and endowed with the superlative ‘Royal Blue’ colour, is surely the dream of gemstone aficionados.
    This particular cutting style also adds to its rarity because a step-cut tends to mask the gemstone’s fire. Only roughs with the right colour saturation and crystal quality would be able to display this very luster and vivacious blue flashes in the master cutter’s hands, deeming it the ultimate collector’s stone.

  • Catalogue Essay

    緬甸一直以來都是盛產頂級紅寶和藍寶的地區,此產地的藍寶石更以其飽濃郁的色彩見稱,深而不沉,閃爍著亮麗的藍光,因此有「皇家藍」的美譽;這個名字也成為了現今最高色級藍寶石的代名詞。
    近代的緬甸礦區產量稀少,開採出來的原石只有極少量逹到寶石級,更枉論在切割後還超過10克拉。此顆藍寶石不但接近20克拉,份量傲人,而且沒有經過任何熱處理,卻又達到「皇家藍」顏色級別,實在是藏家夢寐以求的頂級寶石。
    它的形狀在藍寶石中甚為罕見,也大大提升了其稀珍的程度。方形切割因為切面較少,相對難以展現出寶石的火彩,所以只有色彩濃度極佳、晶體又明亮的原石,在一流的工匠手中才能幻化成如此完美的絶色藍寶,堪稱「藏家級寶石」。

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A Very Fine Sapphire and Diamond Ring

17.62克拉「緬甸皇家藍」天然藍寶石配鑽石戒指, 藍寶石未經加熱處理

Estimate
HK$3,200,000 - 4,000,000 
$400,000-500,000

Place Advance Bid
Contact Specialist
Terry Chu
Head of Jewellery, Asia, Senior Director
+852 2318 2038

Jewels & Jadeite

Hong Kong Auction 25 November 2019