22 avril 2014

Very Fine and Rare Large Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea

Very Fine and Rare Large Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea. Photo Bonhams. A conch is one of a number of different species of medium-sized to large saltwater snails and their shells. True conchs are marine gastropod mollusks in the family Strombidae, and the most well known species is the Strombus gigas or "Queen Conch". The pearls they produce are calcareous concretions—that is they are non-nacreous and are made up of calcium carbonate (rather than aragonite which is the composition of nacreous pearls). ... [Lire la suite]
Posté par Alain Truong à 14:04 - - Commentaires [0] - Permalien [#]
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22 avril 2014

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea. Photo Bonhams. A conch is one of a number of different species of medium-sized to large saltwater snails and their shells. True conchs are marine gastropod mollusks in the family Strombidae, and the most well known species is the Strombus gigas or "Queen Conch". The pearls they produce are calcareous concretions—that is they are non-nacreous and are made up of calcium carbonate (rather than aragonite which is the composition of nacreous pearls). The present example is... [Lire la suite]
Posté par Alain Truong à 13:59 - - Commentaires [0] - Permalien [#]
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22 avril 2014

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea. Photo Bonhams. A conch is one of a number of different species of medium-sized to large saltwater snails and their shells. True conchs are marine gastropod mollusks in the family Strombidae, and the most well known species is the Strombus gigas or "Queen Conch". The pearls they produce are calcareous concretions—that is they are non-nacreous and are made up of calcium carbonate (rather than aragonite which is the composition of nacreous pearls). This attractive... [Lire la suite]
Posté par Alain Truong à 13:57 - - Commentaires [0] - Permalien [#]
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22 avril 2014

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea. Photo Bonhams. A conch is one of a number of different species of medium-sized to large saltwater snails and their shells. True conchs are marine gastropod mollusks in the family Strombidae, and the most well known species is the Strombus gigas or "Queen Conch". The pearls they produce are calcareous concretions—that is they are non-nacreous and are made up of calcium carbonate (rather than aragonite which is the composition of nacreous pearls). Of slightly baroque... [Lire la suite]
Posté par Alain Truong à 13:51 - - Commentaires [0] - Permalien [#]
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19 avril 2014

A conch pearl and diamond dress ring

A conch pearl and diamond dress ring. Photo Bonhams. The conch pearl, measuring 13.0 x 8.6mm, within an undulating ribbon surround of brilliant-cut diamonds, ring size 6½. Estimate HK$ 62,000 - 75,000 (€5,800 - 7,000)Bonhams. FINE JEWELLERY & JADEITE. Hong Kong, Admiralty, 21 May 2014 -www.bonhams.com
Posté par Alain Truong à 13:27 - - Commentaires [0] - Permalien [#]
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30 mars 2014

Conch pearl and diamond 'cross' pendant necklace

Conch pearl and diamond 'cross' pendant necklace. Photo: Sotheby's Designed as a cross, set with five conch pearls together weighing approximately 17.40 carats, the terminals highlighted by cushion-shaped diamonds, embellished by brilliant-cut pink diamonds, rose-cut diamonds and smaller conch pearls, the diamonds together weighing approximately 2.45 carats, accompanied by a link-chain, spectacle-set with two pink diamonds, mounted in 18 karat white and pink gold, length approximately 400mm, pendant detachable. Estimation 300,000 —... [Lire la suite]


30 mars 2014

Pair of conch pearl and diamond pendent earrings

  Pair of conch pearl and diamond pendent earrings. Photo: Sotheby's Each suspending three fringes of conch pearls, decorated by briolette diamonds, to a surmount set with a conch pearl, surrounded by rose-cut diamonds, the fourteen conch pearls measuring approximately 11.74 x 8.22 x 6.20mm to 5.46 x 4.76 x 4.36mm, the diamonds altogether weighing approximately 12.20 carats, mounted in 18 karat white gold. Estimation 980,000 — 1,200,000 HKD Accompanied by SSEF report.Sotheby's. Magnificent Jewels and Jadeite, Hong Kong |... [Lire la suite]
30 mars 2014

Conch pearl and diamond necklace-bracelet

Conch pearl and diamond necklace-bracelet. Photo: Sotheby's Composed of thirty-six conch pearls measuring approximately 14.81 x 11.19mm to 7.48 x 6.34mm, connected by rondelles set with diamonds together weighing approximately 13.70 carats, mounted in 18 karat white gold, necklace detachable to form a separate necklace and bracelet; length of necklace approximately 1000 or 800mm, bracelet approximately 200mm. Estimation 900,000 — 1,000,000 HKD Sotheby's. Magnificent Jewels and Jadeite, Hong Kong | 07 avr. 2014... [Lire la suite]
20 novembre 2013

A conch pearl and diamond necklace-bracelet combination

A conch pearl and diamond necklace-bracelet combination. Photo Bonhams.  The line of brilliant-cut diamonds suspending two rows of conch pearls, graduating in size to the centre, each connected by pairs of brilliant-cut diamonds between caps pavé-set with similarly cut diamonds, bracelet detachable from necklace, diamonds approximately 9.25 carats total, conch pearls approximately 145.00 carats total, necklace length 47.3cm, bracelet length 21.5cm (2). Estimate HK$ 1.1 million - 1.4 million (€100,000 - 130,000) ... [Lire la suite]
20 novembre 2013

A conch pearl necklace

A conch pearl necklace. Photo Bonhams. Designed as a row of seventy-eight graduated conch pearls, measuring 5.0mm x 4.2mm, to 16.1mm x 12.0mm, length 68.6cm. Estimate HK$ 1.2 million - 1.8 million (€110,000 - 170,000) Accompanied by a GIA report stating that the conch pearls are natural and of saltwater origin. Report number 6155961132, dated 18 September 2013. Bonhams. FINE JEWELLERY & JADEITE. Hong Kong. 23 Nov 2013 14:00 CST
Posté par Alain Truong à 18:30 - - Commentaires [0] - Permalien [#]
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