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A Stunning Pair Of Blue Diamond And Pear Shape Diamond Ear Pendants

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A Stunning Pair Of Colored Diamond And Diamond Ear Pendants

Lot Description

Each set with a heart-shaped fancy deep blue diamond weighing 2.48 and 2.03 carats, suspending a detachable pear-shaped diamond weighing 10.12 and 9.64 carats, mounted in platinum, 3.0 cm long

Accompanied by four reports dated from 6 March 2007 to 3 June 2008 from the Gemological Institute of America with the following details:

Report Date Weight Colour Clarity
10454112   03/06/08   10.12 D VS2
16948833   07/04/08   9.64 E VS1
16160884   18/06/07   2.48 Fancy Deep Blue VS2
11205394   06/03/07   2.03 Fancy Deep Blue IF

Also accompanied by two supplemental letters by the Gemological Institute of America stating the 2.48 and 2.03 carat diamonds have been determined to be a type IIb. Type IIb diamonds are very rare in nature (from the laboratory’s experience, less than one half of one percent) and contain small amounts of boron that can give rise to a blue or gray coloration. An unusual property of type IIb diamonds is that they are semi-conductors and conduct electricity. Historically, the ancient mines of India produced occasional blue diamonds but today the most significant source is limited to the Cullinan (formerly Premier) Mine in South Africa.

Among famous gem diamonds, the 70.21 carat Idol’s Eye and the 45.52 carat Hope are examples of type IIb.

Lot sold on June 1, 2010 at the Christie’s Hong Kong Sales

Price Realized : HK$34,260,000 or US$4,416,306

Source : Christie’s Hong Kong Sale

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I am a Graduate Gemologist trained at the Gemological Institute of America (GIA) in New York City, USA. I hold an MBA degree from Cranfield University, United Kingdom, and a Bachelor degree in Mathematics. My earlier profession was a banker until I found jade in Myanmar (Burma) in the early 90s. I have traveled to the fabled Hpakan Jade mines, and Mogok, the world’s famous rubies and sapphires mines in upper Burma, with my second son. Three of my children are also Graduate Gemologist, GIA, NYC and they deal in diamonds, gemstones and jade. 我是在美国纽约市的美国宝石学院(GIA)接受过培训的宝石研究学家。 我拥有英国克兰菲尔德大学的工商管理硕士学位和数学学士学位。我以前的职业是银行家,直到90年代初我在缅甸接触到玉石。我曾经和我的次子一起去过缅甸上流传说中的哈帕翡翠矿山和莫谷矿山, 莫谷矿山是世界上著名的红宝石和蓝宝石矿山。我的三个孩子都是纽约市GIA毕业的宝石研究学家, 他们专门处理钻石,宝石和玉石.

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