18 avril 2015

Platinum, Sapphire and Diamond Ring, Carvin French & Platinum, Emerald and Diamond Ring, Tiffany & Co., circa 1925

  Platinum, Sapphire and Diamond Ring, Carvin French & Platinum, Emerald and Diamond Ring, Tiffany & Co. Photo courtesy Sotheby's Platinum, Kashmir Sapphire and Diamond Ring, Carvin French. Estimate 275,000 — 325,000 USD (249,934 - 295,377 EUR). Photo courtesy Sotheby's.  Centering a cushion-cut sapphire weighing 5.80 carats, flanked by tapered baguette diamonds weighing approximately .60 carat, size 6, with maker's mark.  Accompanied by AGL report no. CS 63492 stating that the sapphire... [Lire la suite]

11 avril 2015

A fine sapphire and diamond pendant necklace

A fine Ceylon  sapphire and diamond pendant necklace. Estimate $200,000 – $300,000. Photo Christie's Image Ltd 2015. Suspending a detachable pendant, set with a cushion-cut sapphire, weighing approximately 17.05 carats, trimmed with cut-cornered square-cut diamonds, one weighing approximately 0.99 carat, from a line set with baguette-cut diamonds and a square-cut diamond, weighing approximately 2.08 carats, to the neckchain, set with a circular-cut sapphire and a series of graduated oval-cut sapphires, spaced by... [Lire la suite]
11 avril 2015

A sapphire and diamond ring

A 27.17 carats cushion-cut Ceylon  sapphire and diamond ring. Estimate $250,000 – $350,000. Photo Christie's Image Ltd 2015. Set with a cushion-cut sapphire, weighing approximately 27.17 carats, trimmed with fourteen circular-cut diamonds, each weighing approximately 0.33 to 0.30 carat, mounted in platinum With report CS 39427 dated 29 January 2008 from the American Gemological Laboratory stating that it is the opinion of the Laboratory that the origin of this sapphire would be classified as Ceylon... [Lire la suite]
Posté par Alain Truong à 16:18 - - Commentaires [0] - Permalien [#]
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10 avril 2015

A three-stone sapphire and diamond ring

A three-stone 4.55 carats Kashmir sapphire and diamond ring. Estimate $330,000 – $400,000. Photo Christie's Image Ltd 2015 Set with a cushion-cut sapphire, weighing approximately 4.55 carats, flanked on either side by a modified cushion-cut diamond, weighing approximately 1.55 and 1.50 carats, mounted in platinum. With report 14037214 dated 5 March 2014 from the Gübelin Gem Lab stating that gemmological testing revealed characteristics consistent with those of sapphires originating from Kashmir. No indications... [Lire la suite]
07 avril 2015

An important sapphire and diamond ring

An important 20.10 carats cushion-cut Burma  sapphire and diamond ring. Estimate $380,000 – $450,000. Photo Christie's Image Ltd 2015 Set with a cushion-cut sapphire, weighing approximately 20.10 carats, to the circular-cut diamond gallery and half-hoop, mounted in platinum With report 77388 dated 11 November 2014 from the SSEF Swiss Gemmological Institute stating that the origin of this sapphire is Burma (Myanmar). No indications of heatingWith report 14097127 dated 15 September 2014 from the Gübelin Gem... [Lire la suite]
Posté par Alain Truong à 23:08 - - Commentaires [0] - Permalien [#]
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18 juillet 2014

An antique sapphire and diamond pendant

An antique sapphire and diamond pendant. Photo Christie's Image Ltd 2007 Set with a cushion-cut sapphire, weighing approximately 22.66 carats, within an old European-cut diamond surround, mounted in gold, circa 1886. Estimate $250,000 - $350,000. Price Realized $3,064,000 With report 0702554 dated 20 February 2007 from the Gübelin Gemmological Laboratory stating that gemmological testing revealed characteristics consistent with those of sapphires originating from Kashmir. No indications of heating Accompanied by an appendix... [Lire la suite]


07 juillet 2014

A rare unmounted cushion-cut sapphire

A rare unmounted cushion-cut sapphire. Photo Christie's Image Ltd 2004 Weighing approximately 19.45 carats Price Realized $601,100 With report CS 36993 dated 12 May 2004 from the American Gemological Laboratories stating that based on available gemological information, it is the opinion of the Laboratory that the origin of this material would be classified as Classic Kashmir. Heat Enhancement: None. Clarity Enhancement: NoneR Christie's. MAGNIFICENT JEWELS, 12 October 2004, New York, Rockefeller... [Lire la suite]
Posté par Alain Truong à 19:20 - - Commentaires [0] - Permalien [#]
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19 avril 2014

An Important Unheated Ceylon Sapphire and Diamond Ring

An Important Unheated Ceylon Sapphire and Diamond Ring. Photo Phillips. Set with a cushion-cut Ceylon sapphire, weighing approximately 13.21 carats, with a pavé-set diamond surround and half hoop, mounted in platinum, size 6 1/2. Estimate $100,000 - 140,000 With report no.CS49646 dated 17 May 2012 from the American Gemological Laboratories, stating that the sapphire is of Sri Lankan (Ceylon) origin, with no indications of heat Phillips. JEWELS NEW YORK 30 APRIL 2014 10AM - http://phillips.com/
Posté par Alain Truong à 22:27 - - Commentaires [0] - Permalien [#]
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03 avril 2014

A sapphire and diamond ring

A sapphire and diamond ring. Photo Christie's Image Ltd 2014 Set with a cushion-cut sapphire, weighing approximately 9.20 carats, within a pear-shaped diamond surround, mounted in platinum. Estimate $10,000 – $15,000 Christie's. MAGNIFICENT JEWELS, 16 April 2014, New York, Rockefeller Plaza - www.christies.com
Posté par Alain Truong à 18:57 - - Commentaires [0] - Permalien [#]
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03 avril 2014

A cushion-cut sapphire ring

A cushion-cut sapphire ring. Photo Christie's Image Ltd 2014 Set with a cushion-cut sapphire, weighing approximately 6.11 carats, mounted in platinum. Estimate $70,000 – $100,000 With report CS 58692 dated 16 January 2014 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of this material would be classified as Burma (Myanmar). No gemological evidence of heat With report 6157466583 dated 22 May 2013 from the Gemological Institute of America that the geographic origin of... [Lire la suite]
Posté par Alain Truong à 18:35 - - Commentaires [0] - Permalien [#]
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