Footnotes

Accompanied by a GIA report numbered 5221821231, dated 20 March 2024, stating that the 30.10-carat Very Light Pink diamond is natural, VVS2 clarity; along with a Diamond Type Classification report stating that the diamond has been determined to be a Type IIa diamond with pink colour. "Type I and II diamonds contain little if any nitrogen and they are subdivided into two groups (IIa and IIb) both of which are quite rare (less than 2% of all gem diamonds)... This type IIa diamond is very rare in nature, often have relatively few inclusions and are noted for their mostly homogenous colour in the rough. Type IIa diamonds with pink colour have been found in a number of mining regions around the world. Historically they were found in India (particularly from Golconda region)."

珍稀30.10克拉天然輕淡粉紅色VVS2淨度Type IIa鑽石
附GIA證書及Type IIa報告

Property of a Prestigious Asian Collector
亞洲顯赫藏家珍藏

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請參閱圖錄首頁之「重要登記須知」以參與此拍品之競投


Pink diamonds are exceedingly rare in nature. It is estimated that only one in 10,000 gem quality diamonds produced in the world show noticeable colour and of these a similarly small percentage are pink, the majority under 2.00 carats in size. How they occur is romantically enigmatic; unlike most other coloured diamonds, their colour is caused not by trace elements in their chemical composition but by a lucky miracle of nature, a distortion within their atomic lattice caused by the pressure exerted on them during their formation.

Round Brilliant-Cut
The round brilliant-cut has traditionally a higher percentage of wastage from the original rough material compared to other diamond cuts. The result is an approximate 30% higher commanding prices in round stones to other shapes. This makes the 30.10 carats very light pink diamond on offer at the Bonhams Hong Kong Autumn sale an exceptionally rare example combining, size, colour, shape and quality, making it a true collectors stone.

Type IIa: 'Purest of the Pure'
Less than 1% of diamonds worldwide are classified as Type IIa, often referred to as the 'Purest of the Pure'. These diamonds exhibit exceptional brilliance and sparkle. This purity is derived from the total lack of nitrogen in the chemical structure, giving these stones a superior optical quality. Type IIa diamonds remain highly prized by collectors and investors seeking out the highest quality diamonds.

Famed Pink Diamonds in Royal Collections
Throughout millennia of diamond mining, pink diamonds have been unearthed only occasionally, historically in India and later in Brazil, Indonesia and South Africa. The best specimens have been kept as treasures in the collections of royalty, rulers and museums, sought after and celebrated for their elusive beauty.

One of the most notable examples in a Royal Collection is the 'Williamson Pink', gifted to the late Queen Elizabeth II of the United Kingdom in 1947 by the Canadian geologist John Williamson on the occasion of her marriage to Prince Philip of Greece. The round-brilliant-cut pink diamond of 23.60 carats was discovered in Tanzania and cut from a rough stone originally weighing 54.50 carats. The finished stone was mounted in a striking flower brooch designed by Cartier, which was worn by the late Queen on many occasions throughout her reign.

粉紅鑽石在大自然界中極為罕見。據估計，世界上生產的寶石級鑽石中，只有萬分之一顯示出明顯的顏色，其中的粉紅色，大多數重量低於2.00克拉。粉紅鑽石美妙的顏色，對我們來說根本還是一個浪漫的謎題，粉紅色與大多數其他彩色鑽石不同，它的顏色不是由化學成分中的微量元素造成，而是由幸運的大自然奇蹟孕育，它的原子晶格因形成過程中受到壓力而造成變形，粉紅鑽石因此而誕生。

圓形明亮式切割
圓形是所有鑽石形狀毛料損耗最大的切割方法，比其他形狀價格略升約30%。在彩色鑽石市場上，一般都切割出長方或枕頭形狀，以盡量保留毛料的本身重量，從而實現利潤最大的克拉價值。因此圓形的彩鑽石幾乎絕無僅有，拍賣場上更是屈指可數，這枚30.10克拉輕淡粉紅色鑽石，無論重量及淨度都達到了收藏級的水平。

Type IIa鑽石 —— 最完美的純淨無瑕
全球產量不到1%的鑽石是Type IIa型，通常被稱為「Purest of the Pure」——「最完美的純淨無瑕」，光彩超凡、閃爍極致璀璨，美得令人屏息。拍賣會中會特別標識鑽石種類的Type IIa型鑽石，不但完全不含氮，幾乎是純碳組成，收藏價值和增值幅度驚人，因此也被認為是最優質的鑽石投資，藏家尋求最高品質鑽石的首選。

皇家收藏中著名的粉紅鑽石
在數千年的鑽石開採過程中，粉紅色鑽石只是偶爾出土，歷史上是在印度，後來是在巴西、印尼和南非。最珍貴暨罕有的樣品被視為皇室、統治者和博物館的珍藏，因其難以捉摸的美麗而受到讚美和追捧。

皇家收藏中最著名的圓形粉紅鑽石「Williamson Pink」，是加拿大地質學家約翰·威廉森（John Williamson）於1947年在已故英國女王伊麗莎白二世（Queen Elizabeth II）與希臘菲利普親王（Prince Philip）結婚之際，將其作為禮物贈送給已故英國女王。這顆重達23.60克拉的圓形明亮式切割粉紅鑽石是在坦桑尼亞發現，由重達54.50克拉的原石切割而成。這顆稀有的粉紅鑽石被鑲嵌在卡地亞設計的花卉胸針上，被受注目，已故女王在其統治期間曾多次佩戴。