Jewels and Jadeite Hong Kong Thursday, June 23, 2022 | Phillips

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    • - One square step-cut emerald, 5.35 carats
      - Two half moon-shaped diamonds on the sides, 1.20 carats total
      - Platinum
      - Ring size 6

      SSEF Report: Colombia, no indications of clarity modification
      附瑞士SSEF 證書

      Please note that the SSEF Report is more than 5 years old and may require an update

    SSEF Report: Colombia, no indications of clarity modification

    附瑞士SSEF 證書

    Please note that the SSEF Report is more than 5 years old and may require an update

  • Catalogue Essay

    Emeralds, celebrated as the gem of spring, are renowned for their striking colour. Having been the subject of fascination since antiquity, emeralds are a bluish-green variety of the mineral: beryl. When chromium, vanadium and iron are present in beryl, emeralds form, and the varying presence of these three elements results in a range of colours.
    For more than 4,000 years, emeralds have been among the most valuable of all jewels. The first known emerald mines were in Egypt, dating from at least 330 BC into the 1700s. Cleopatra was known to have a passion for emerald, and used it in her royal adornments.
    Emeralds from what is now Colombia were part of the plunder when sixteenth-century Spanish explorers invaded the New World. Colombia, located in northern South America, is the country that mines and produces the most emeralds for the global market, as well as the most desirable. It is estimated that Colombia accounts for more than 60% of the world's emerald market. While commercial grade emeralds are quite plentiful, fine and extra fine quality emeralds are extremely rare.
    When grading gemstones, colour is normally the most important criterion — although with emeralds, clarity comes a close second. The most coveted stones possess both a verdant green hue and a high degree of transparency. For a gem to be considered an emerald, it must be medium to dark in tone — with lighter-toned gems known instead by the species name green beryl. A high saturation of green is also highly desirable.
    It is natural for emeralds to feature inclusions and surface-breaking fissures — it is so common for emeralds to be flawed that a ‘clean’ stone is said to be virtually unknown. Jewellers call these inclusions jardin, the french term for garden, because they are said to resemble mossy wilderness, ‘growing’ within the stone.
    The majority of emeralds are treated in some way, in order to fill surface-reaching cracks, and to improve their clarity and sometimes their stability. Common treatments include the use of oils and polymers. While it is accepted, the degree of treatment can reduce value: untreated emeralds of similar appearance would take on a far higher value, owing to their extreme value.
    Lot 584, is a remarkable 5.35 carat natural Colombian emerald which possesses an evenly distributed, vibrant green hue of strong saturation. The emerald crystal is an exceptionally clean specimen, devoid of any clarity enhancement which is extremely rare and highly desirable. If history has demonstrated emeralds’ enduring popularity, today’s market shows a growing appreciation for the gem. Market prices in recent years have been high, with buyers demonstrating an increased interest for rare, untreated emeralds.

    祖母綠被譽為「春天的寶石」,因其青翠欲滴的顏色而享負盛名。祖母綠屬綠柱石一族,為藍綠色礦物品種,自古以來一直是世人趨之若騖的瑰寶。當鉻、釩、和鐵離子共存於綠柱石中,祖母綠便會形成,三種元素的變化致色出寶石的繽紛色彩。

    逾四千年來,祖母綠的價值一直在所有珠寶中名列前茅。世上首個已知的祖母綠礦場位於埃及,年份最早可追溯自公元前 330 年至1700 年代。眾所周知,埃及托勒密王朝末代女王克里奧佩特拉七世對祖母綠深深著迷,常以祖母綠裝飾皇室袍服。
    十六世紀時,西班牙探險家征服新大陸,產自(現稱)哥倫比亞的祖母綠,成為了他們的戰利品。哥倫比亞位於南美洲北部,為全球祖母綠開採量及產量最豐富的國家,所出產的祖母綠品質最受追捧。據估計,哥倫比亞的祖母綠產量佔全世界祖母綠市場逾六成以上。市場上不乏商業級祖母綠的蹤影,但優質與品質上乘者,則極為罕見。
    評鑑寶石的等級時,往往以色澤為先;但就祖母綠而言,淨度亦非常重要。頂級祖母綠翠艷瑩潤、通透欲滴,只有色階在中等至深邃的寶石,方能稱為祖母綠;色澤較淺者,一般被視為綠柱石。因此,高飽和度的綠色極為罕有。
    祖母綠通常具有內含物,表面亦會有細微裂縫,因此,有瑕疵的祖母綠乃十分常見,一顆完全「無瑕」的祖母綠幾乎鮮為人知。珠寶商將這些內含物稱為「Jardin」,即法語的「花園」,他們認為寶石內部就像苔蘚蔓生的荒野,內含物可以在這所「花園」中茁壯「生長」。
    大部份祖母綠均經過加工處理,以填補延伸至表面的裂縫、同時提高淨度或加強穩定性。常見的加工處理包括注油及填充聚合物。雖然加工程序獲廣泛接受,寶石的價值仍會根據加工程度而有所減低。兩顆外型相似的祖母綠,未經加工者更為珍貴,價值更高。

    拍品編號584天然哥倫比亞祖母綠重5.35克拉,色澤均勻、濃豔飽滿,祖母綠晶體極為通透,未經任何淨度處理,珍罕非凡、極具收藏價值。從歷史可證,祖母綠的魅力經久不衰,今時今日市場對它的需求亦有增無減。近年來,祖母綠的市場價格一直居高不下,買家對未經處理的稀有祖母綠可謂趨之若鶩。

584

An Exceptional Emerald and Diamond Ring

- One square step-cut emerald, 5.35 carats
- Two half moon-shaped diamonds on the sides, 1.20 carats total
- Platinum
- Ring size 6

SSEF Report: Colombia, no indications of clarity modification
附瑞士SSEF 證書

Please note that the SSEF Report is more than 5 years old and may require an update

Estimate
HK$3,000,000 - 4,000,000 
$385,000-500,000

Contact Specialist

Charlene Lau
Head of Jewels, Hong Kong
+852 2318 2039
[email protected]

Jewels and Jadeite

Hong Kong Auction 23 June 2022