19 mai 2016

Precious Pink Topaz, Brazil

Lot 1224. Precious Pink Topaz, Brazil. Weighing approximately 8.61 carats and measuring 18.27 x 9.33 x 6.69mm. Sold for US$ 16,250 (€14,512). Photo: Bonhams. This very fine pear-shaped topaz is distinguished by a rich saturation in color of the greatest depth. While pink topaz was a popular gemstone for use in jewelry during the Victorian era, such gems, displaying a vividness of color, excellent clarity and luster, are nearly impossible to find in the present market. This is an heirloom quality stone deserving of being... [Lire la suite]
Posté par Alain Truong à 23:10 - - Commentaires [0] - Permalien [#]
Tags : ,

19 mai 2016

Exceptional Amethyst Geode with Calcite Stalactite, Minas, Brazil

Lot 1143W. Exceptional Amethyst Geode with Calcite Stalactite, Minas, Brazil. Weighing approximately 225 lbs (102 kgs). Measuring 26 x 21 x 13in. Sold for US$ 20,000 (€17,861). Photo: Bonhams. A view into an interior world of associated minerals, this is a large and exceptional amethyst geode is worthy of display in the most serious mineral collection. Careful lighting will best reveal the beauty of the calcite stalactite and vivid violet-purple hued amethyst crystals which line the interior. Such spectacular... [Lire la suite]
Posté par Alain Truong à 22:53 - - Commentaires [0] - Permalien [#]
Tags : , ,
09 mai 2016

Nature at Home: Huge Stegosaurus skeleton to be sold by Auctionata at REDGALLERY

The breathtaking highlight of the auction is unmistakably the 7-meter-long and c. 150-million-year-old Stegosaurus skeleton. HAMBURG.- On May 28, 2015, at 6 pm CET, Germany’s leading auction house Auctionata presents a very special online auction: entitled “Nature at Home – Prehistorical fossils and minerals”, 90 decorative and highquality natural artworks will be sold via livestream on www.auctionata.com. The absolute highlight of the auction is the complete skeleton of a stegosaurus, which is valued at 2,4 million... [Lire la suite]
17 mars 2016

Tourmaline on Cleavelandite, Brazil

Tourmaline on Cleavelandite, Brazil
Posté par Alain Truong à 20:21 - - Commentaires [0] - Permalien [#]
Tags : , ,
23 août 2015

Tourmaline, Chrysocolla Slab

Tourmaline - Barra de Salinas, Coronel Murta, Jequitinhonha valley, Minas Gerais, Brazil Translucent Chrysocolla Slab - Cantera Pisco, Pisco Province, Ica Department, Peru
19 mai 2015

The 'King of Tourmalines' opens his cabinet of extraordinary fine minerals to the world

Tourmaline on Tourmaline with Quartz. Porcupine Pocket, 2001. Pederneira Mine, São José da Safira, Doce Valley, Minas Gerais, Brazil. Estimate: $500,000 - $700,000. Photo courtesy Heritage Auctions. DALLAS, TX.- When The Gerhard Wagner Collection of extraordinary tourmalines crosses the block on June 7, 2015, at Heritage Auctions in Dallas, it will be — for hardcore collectors in the world of Fine Minerals — as if a vast cave of treasures, carefully cultivated and perfectly kept for decades, is opening for... [Lire la suite]

22 avril 2014

The "100 Carats Club" Kunzite--"A Member of the 100 Carats Club", Brazil

The "100 Carats Club" Kunzite--"A Member of the 100 Carats Club", Brazil. Photo Bonhams. A delectable piece of eye-candy this stone is distinguished by its true baby pink color of good saturation and its fine luster. A number of fascinating needle like inclusions grace the interior and aid in the diagnostics of identification but do not detract from its beauty. Weighing approximately 168.40 carats and measuring 35.0 x 29.0 x 19.0 mm. Estimate US$ 2,500 - 3,500 (€1,800 - 2,500)Bonhams. GEMS, MINERALS, LAPIDARY WORKS OF ART AND... [Lire la suite]
Posté par Alain Truong à 17:39 - - Commentaires [0] - Permalien [#]
Tags : , ,
02 octobre 2013

Very fine gemstone: Imperial Topaz - 17.04. Ouro Preto, Minas Gerais, Southeast Region, Brazil.

Very fine gemstone: Imperial Topaz - 17.04. Ouro Preto, Minas Gerais, Southeast Region, Brazil. Photo courtesy Heritage Auctions "Often rumoured, seldom seen" is a phrase that aptly describes Imperial Topaz. Despite the almost universal recognition of the term "Imperial Topaz," there is almost no additional information associated with this gemstone in the public arena: what is it? where it's from? what is it worth? In truth, while many have heard of Imperial Topaz, few have actually seen the gem and even fewer... [Lire la suite]
Posté par Alain Truong à 08:44 - - Commentaires [0] - Permalien [#]
Tags : , ,
02 juin 2013

Paraiba Tourmaline, 2.62 Ct. Paraiba or Rio Grande do Norte, Brazil

Paraiba Tourmaline, 2.62 Ct. Paraiba or Rio Grande do Norte, Brazil. Photo Heritage Auctions No indication of heat treatment. In excellent condition. Measurements are 9.27 x 7.38 x 5.55 mm, and it weighs 2.62 carats. Estimated Price: $45,000 - $55,000 Paraiba Tourmalines are named after the Brazilian locality where they were first discovered in 1989. It's electrifying color soon propelled it to the position of finest Tourmalines - ever. The color is almost impossible to describe and photograph - this... [Lire la suite]
Posté par Alain Truong à 21:50 - - Commentaires [0] - Permalien [#]
Tags : , ,
30 mars 2013

Stunning Large Carved Rubellite Tourmaline, Brazil

Stunning Large Carved Rubellite Tourmaline, Brazil It has become very difficult to find rubellites with strong color in such a large size. Hand-carved in India, decorated to the front with a carving of three lotus flowers and to the reverse with a stylized single lotus blossom, the quality of the tourmaline used in this rich deep purplish pink tourmaline is exceptional. Weighing approximately 220.5 carats, height 4.3cm
Posté par Alain Truong à 14:23 - - Commentaires [0] - Permalien [#]
Tags : , , ,