10 mai 2018

Rich Black Opal-"The Black Prince II", Lightning Ridge, New South Wales, Australia

Lot 3169. Rich Black Opal-"The Black Prince II", Lightning Ridge, New South Wales, Australia. Weighing approximately 36.92 carats and measuring 31.5 x 20.2 x 8.4mm. Estimate US$ 65,000 - 85,000 (€ 55,000 - 72,000). © Bonhams 2001-2018 A "nobby" opal, known in the opal trade as "black liquid", this particular example displays a midnight black body color and predominantly vivid, electric green play-of-color with flashes of turquoise, orange and crimson. Having true black potch to the reverse side, the face exhibits what may be termed... [Lire la suite]

10 mai 2018

Exceptional Black Pattern Opal-"Fireworks", Lightning Ridge, New South Wales, Australia

Lot 3147. Exceptional Black Pattern Opal-"Fireworks", Lightning Ridge, New South Wales, Australia. Weighing approximately 20.45 carats and measuring 22.5 x 20.4 x 7.9mm. Estimate US$ 120,000 - 140,000 (€ 100,000 - 120,000). © Bonhams 2001-2018 This world-class gem is a memorable pattern opal reminiscent of a starburst or "fireworks". Its focal point is a red lozenge-shaped center from which extend red "rays" and a multitude of rich green, blues, orange hues. The play of color is present and luminous... [Lire la suite]
19 mai 2016

Large Zoomorphic Gold Nugget, "The Rhino", Central Victoria, Australia

Lot 1297. Large Zoomorphic Gold Nugget, "The Rhino", Central Victoria, Australia. Weighing approximately 5.37 ozt (167.2 grams) and measuring 3 x 2 x 3/4in. Sold for US$ 12,500 (€11,163). Photo: Bonhams. Sharp with very minute traces of white quartz in tiny crevices, this is a substantial and imposing nugget. Capable of standing on its own, the shape is somewhat zoomorphic and has been stated to resemble the figure of a rhinoceros.  Bonhams. AUCTION 23397: LAPIDARY WORKS OF ART, GEMSTONES,... [Lire la suite]
Posté par Alain Truong à 23:41 - - Commentaires [0] - Permalien [#]
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19 mai 2016

Very Large and Impressive Gold Nugget, Whipstick, Bendigo, Victoria, Australia

Lot 1298. Very Large and Impressive Gold Nugget, Whipstick, Bendigo, Victoria, Australia. Weighing approximately 24.50 ozt. (762 grams) and measuring 4 x 3 1/2 x 1in. Sold for US$ 56,250 (€50,236). Photo: Bonhams. This palm-sized ancient nugget has smoothed surfaces which reveal its water-worn past. Desirable for its aesthetics, this specimen in that rare category of large nuggets which have survived the smelting process. Such specimens are increasingly rare in today's marketplace.   ... [Lire la suite]
Posté par Alain Truong à 23:35 - - Commentaires [0] - Permalien [#]
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19 mai 2016

Gold Nugget, Wedderburn, Central Victoria, Australia

Lot 1296. Gold Nugget, Wedderburn, Central Victoria, Australia. Weighing approximately 6.75 ozt (210.3 grams). Sold for US$ 16,250 (€14,512). Photo: Bonhams. An exceptionally three-dimensional nugget capable of standing on its own, displaying waterworn edges and also cavities where quartz may have been present eons ago.  Bonhams. AUCTION 23397: LAPIDARY WORKS OF ART, GEMSTONES, MINERALS AND NATURAL HISTORY - LOS ANGELES
Posté par Alain Truong à 23:28 - - Commentaires [0] - Permalien [#]
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14 novembre 2015

Rare Black Opal--"Mackerel or Ribbon Pattern", Lightning Ridge, New South Wales, Australia

Rare Black Opal, "Mackerel or Ribbon Pattern", Lightning Ridge, New South Wales, Australia. Estimate US$ 40,000 - 50,000 '€37,000 - 46,000). Photo Bonhams. A beautiful opal either by night or day, the present stone is particularly notable for its mackerel pattern, the name for the ribbon pattern of opalization which is so sought-after by knowledgeable opal collectors. Displaying extensive orange ribbons with some flashes of red, when the stone is rotated, iridescent green flashes abound, intermingled with some... [Lire la suite]

13 novembre 2015

Spectacular Black Opal, Corcoran Opal Field, Lightning Ridge, Australia

Spectacular Black Opal, Corcoran Opal Field, Lightning Ridge, Australia. Estimate US$ 40,000 - 50,000 '€37,000 - 46,000). Photo Bonhams. A classic for the region, predominating in firey reds and full vividness of its multi-color play-of-color. This gem possess true black potch as well as some play-of-color to the reverse side as well. Weighing approximately 8.14 carats and measuring 18.98 x 12.83 x 5.08mm Bonhams. THE WORLD OF OPALS, 23 Nov 2015 15:00 PST - LOS ANGELES
Posté par Alain Truong à 23:58 - - Commentaires [0] - Permalien [#]
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13 novembre 2015

Spectacular Black Opal, Lightning Ridge, New South Wales, Australia

Spectacular Black Opal, Lightning Ridge, New South Wales, Australia. Estimate US$ 50,000 - 70,000 (€46,000 - 65,000). Photo Bonhams. A thick, plump and delectable specimen of opal fashioned as a high-domed cabochon. Dominated by reddish-orange flashes of color, interspersed with electric blue and purple and splashes of green. With some play-of-color on the reverse, the stone retains some semi-black potch to the reverse as well which enhances the vibrancy of the colors.Weighing approximately 47.15 carats and measuring... [Lire la suite]
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13 novembre 2015

Guinness Book of World Records: Largest Recorded Black Opal Specime. "The Sea of Opal"

Guinness Book of World Records: Largest Recorded Black Opal Specimen--"The Sea of Opal", Joe's Run, Grawin Field, near Lightning Ridge, New South Wales, Australia. Carved and polished by Christine Rousel. Estimate US$ 150,000 - 250,000 (€140,000 - 230,000). Photo Bonhams. Found over 10 years ago in Grawin Field, the present specimen of seam opal was left as close as possible to the natural state in which it was found. Cut and polished by the artist who was then Australia's foremost opal carver, the late... [Lire la suite]
13 novembre 2015

Premier American collection
of twelve lightning ridge black opals, Lightning Ridge, New South Wales, Australia

Premier American collection
of twelve lightning ridge black opals, Lightning Ridge, New South Wales, Australia . Estimate US$ 600,000 - 800,000 (€560,000 - 740,000). Photo Bonhams. Comprising a free-form black opal, weighing approximately 11.07 carats; an oval black opal, weighing approximately 12.12 carats; an oval black opal, weighing approximately 13.0 carats; a free-form semi-black, weighing approximately 14.0 carats; a free-form black opal, weighing approximately 14.12 carats, an oval black opal, weighing... [Lire la suite]
Posté par Alain Truong à 23:31 - - Commentaires [0] - Permalien [#]
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