Alain.R.Truong

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A World-Class Gem-Quality Australian Black Opal—"The Stardust Opal". T-Bones Mine, Corcoran, New South Wales, Australia

A World-Class Gem-Quality Australian Black Opal—"The Stardust Opal". T-Bones Mine, Corcoran, Lightning Ridge, New South Wales, Australia © 2002-2010 Bonhams 1793 Ltd Weighing 14.40 carats and measuring 18.5 x 14.1 x 8.0mm. Sold for $39,650 Found in 1981,...

Posté par Alain Truong à 23:21 - Commentaires […] - Permalien [#]

Tags: Australia, black opal, Corcoran, Lightning Ridge, New South Wales, T-Bones Mine, —"The Stardust Opal"

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12 novembre 2010

Rare Indonesian Hyrdophane Opal. Rangkasbitung, Banten Province, West Java, Indonesia

Rare Indonesian Hyrdophane Opal. Rangkasbitung, Banten Province, West Java, Indonesia © 2002-2010 Bonhams 1793 Ltd Weighing approximately 23.0 carats and measuring 23.0 x 22.5 x 9.75mm. Sold for $2,745 It is a little known fact that Indonesia produces...

Posté par Alain Truong à 22:46 - Commentaires […] - Permalien [#]

Tags: Indonesia, opal, Banten Province, Indonesian Hyrdophane Opal, Rangkasbitung, West Java

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12 novembre 2010

Very Fine Mexican Jelly Opal—The National Gemstone of Mexico. Magdelena, Jalisco, Mexico

Very Fine Mexican Jelly Opal—The National Gemstone of Mexico. Magdelena, Jalisco, Mexico © 2002-2010 Bonhams 1793 Ltd Weighing approximately 8.95 carats and measuring 18.0 x 13.0 x 8.0 mm - Sold for $8,540 Opals were formed during the Cretaceous period...

Posté par Alain Truong à 22:34 - Commentaires […] - Permalien [#]

Tags: Mexico, opal, Jalisco, Magdelena, Mexican Jelly Opal

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1 novembre 2010

An extremely rare melo pearl

Lot 87. An extremely rare melo pearl. Price Realized $722,500 (Estimate $180,000 - $250,000). © Christie's Images Ltd., 2010 The melo pearl weighing 224.30 carats of orange hue, 31.66 x 30.76mm. Accompanied by report no. 6102605844 dated 22 October 2009...

Posté par Alain Truong à 20:52 - Commentaires […] - Permalien [#]

Tags: vietnam, Melo pearl

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11 octobre 2010

Important and perfectly matched pair of unmounted brilliant-cut diamonds.

Important and perfectly matched pair of unmounted brilliant-cut diamonds. photo courtesy Sotheby's Two unmounted brilliant-cut diamonds each weighing 10.88 carats. Estimate 25,000,000—30,000,000 HKD. Lot Sold 37,620,000 HKD Accompanied by GIA reports...

Posté par Alain Truong à 20:00 - Commentaires […] - Permalien [#]

Tags: brilliant-cut diamond

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22 juin 2010

Diamant sur papier, de 0,83 carat, taille unique « Sea Shell » de Sir Gabi Tolkowsky.

Diamant sur papier, de 0,83 carat, taille unique « Sea Shell » de Sir Gabi Tolkowsky. Diamant signé et numéroté au laser. Dim: 6,85 x 6,00 x 2,75mm. Estimation : 2200/3000 € Certificat du Gem Certification and assurance Lab (GCAL) à New York, datant du...

Posté par Alain Truong à 17:36 - Commentaires […] - Permalien [#]

Tags: Sir Gabi Tolkowsky, diamant Sea Shell

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31 mai 2009

An unmounted oval mixed-cut ruby

An unmounted oval mixed-cut ruby The oval mixed-cut ruby, weighing 5.01 carats. Sold for HK$156,000 Note: Accompanied by a certificate from the Gemresearch Swisslab, stating that the ruby is of Burmese (Myanmar) origin, natural pinkish-red colour, with...

Posté par Alain Truong à 22:02 - Commentaires […] - Permalien [#]

Tags: Burmese ruby, oval mixed-cut ruby

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26 mai 2009

An unmounted diamond weighing 15.02 carats

An unmounted diamond weighing 15.02 carats Estimate $1,322,052 - $1,944,194 - Price Realized $1,682,375 Accompanied by report no. 2105514589 dated 23 January 2009 from the Gemological Institute of America stating that the 15.02 carat diamond is D colour,...

Posté par Alain Truong à 22:56 - Commentaires […] - Permalien [#]

Tags: diamond, Golconda, Cullinan, Koh-i-noor, Type IIa diamond

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16 mai 2009

Magnificent unmounted fancy vivid yellow diamond

Magnificent unmounted fancy vivid yellow diamond The unmounted fancy vivid yellow marquise modified brilliant-cut diamond weighing 18.13 carats. Accompanied by GIA report no. 1102595075 stating that diamond is Fancy Vivid Yellow, Natural Colour, VVS2...

Posté par Alain Truong à 22:20 - Commentaires […] - Permalien [#]

Tags: Fancy vivid yellow diamond

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16 avril 2009

An unmounted diamond

An unmounted diamond the old European-cut light yellow diamond, weighing 4.40 carats. (diamond untested for origin of color). Estimate: $12,000 - 15,000 Bonhams. Fine Jewelry, 20 Apr 2009. New York, San Francisco and Los Angeles www.bonhams.com (Copyright...

Posté par Alain Truong à 14:50 - Commentaires […] - Permalien [#]

Tags: Light yellow diamond

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