Idar-Oberstein, Germany Circa 1980 Retailed by Vacheron Constantin, Geneva, Switzerland Carved from...
Idar-Oberstein, Germany Depicting a finch, the body carved from a single specimen of labradorite...
Madagascar Formed of well polished slabs of bright blue labradorite, the hinged lid opening to...
Queensland, Australia Made by an Australian artist, this unique waterfall feature incorporates...
Queensland, Australia Carved from a single large, immense specimen of boulder opal consisting of...
Queensland, Australia Idar-Oberstein, Germany Retailed by H. Stern Carved from a single piece of...
Madagascar Carved from a single specimen of labradorite, the blue sheen used to evoke the feathers...
Expertly carved and polished from large slabs of labradorite from Madagascar, the box has been well...
An unusual collection of four dendritic (or "moss" opals) including a blue opal, Peru, weighing...
Brazil A well-matched pair of oval cabochons, each having a bright, golden yellow hue and strong...
Burma Truly a stone for the serious collector, such large feldspar gems are no longer being exported...
Burma A large and beautifully, polished circular cabochon of moonstone. It possesses a distinct and...
India A large, oval cabochon with milky white adularescence, which also displays the phenomenon of a...
Sri Lanka Polished as an oval cabochon with a high dome, this sapphire of classic Sri Lankan...
Burma A large oval cabochon moonstone of fine quality and transparency having the optical phenomena...
Gympie, Queensland, Australia Weighing well over an ounce, this pretty specimen has value well...
Eagle's Nest, Michigan Bluff, Placer County, California An exquisite miniature specimen with...
Harvard Mine, Jamestown Mining District, Tuolumne Co., California Comprising bright, lustrous gold...
S. Fork Stanislaus River, Columbia Mining District, Tuolumne Co., California A fine specimen...
The first, a thumbnail specimen, Nighthawk Lake area, Ontario, Canada, height 1.2 cm; the second, a...
Motherlode, Mariposa County, California A beautiful thumbmail specimen featuring an arborescent...
16 to 1 Mine, Alleghany Mining District, Sierra County, California An arborescent specimen of "tree...
Harvard Mine, Jamestown Mining District, Tuolumne County, California An exquisite thumbnail specimen...
Placer County, California A classic river tumbled nugget with excellent three-dimensional form...
California Having roughly the shape of a large arrowhead, this character-filled nugget has traces of...
A beautiful water-worn nugget having traces of quartz and oxides in the crevices. Weighing...
California A hefty nugget with great three-dimensionality, having minor traces of white quartz in...
An alluvial nugget of great character with a naturally pierced hole and minor oxides in the...
Colorado Quartz Mine, Mariposa County, California A classic example with unbelievable luster, the...
Colorado Quartz Mine, Mariposa County, California Minute crystallization of exquisite form...
Colorado Quartz Mine, Mariposa County, California This fine, highly crystallized gold specimen is...
near Chicken, Alaska The search for gold played a major role in shaping the history of Alaska (it...
near Chicken, Alaska A set of nine natural placer gold nuggets having a rich "old world" patina as...
near Whitehorse, Yukon Territory, Canada These gold nuggets from Northern Canada are stunning butter...
Western Australia Forming the outline of a pair of lips, this natural nugget has a bright patina and...
Marble Rock, Placer Central Mining District, Humboldt Co, Nevada An alluvial nugget with great form...
By Peter Eccles Australian goldsmith, Peter Eccles, utilized a natural Australian gold nugget with...
Central Victoria, Australia An naturally elongated drop-shaped gold nugget having bright patina...
California A "comma" shaped nugget having excellent patina and hints of red oxides in the crevices...
By Peter Eccles Australian goldsmith, Peter Eccles, utilized a natural Australian gold nugget with...
Yukon Territories, Canada A rich yellow nugget having great three-dimensionality and a buttery...
Round Mountain Mine, Nye County, Nevada The present, magnificent specimen comprises an arborescent...
Olinghouse Mine, Green Pit, Washoe County, Nevada A small bed of quartz houses a plethora of minute...
Round Mountain Mine, Nye County, Nevada Leaf gold with extraordinary minute crystallization, this is...
Round Mountain Mine, Nye County, Nevada A bright patina characterizes this beautiful specimen...
Maryborogh, Central Victoria, Australia A rare specimen of gold-in-quartz, capable of standing on...
Avoca, Central Victoria, Australia An attractive nugget with rich yellow patina, having water-worn...
Western Australia Capable of standing on its own, this attractive specimen is lacy and filled with...
Central Victoria, Australia With individual weights as follows: 16.70 gm; 16.53 gm; 15.76 gm; 14.51...
Western Australia A large nugget showing minute traces of quartz in the crevices, with smoothed...
Central Victoria, Australia With individual weights as follows: 29.7 gm; 28.0 gm; 27.0 gm; 27.0 gm...
Golden Mile, Kalgoorlie/Boulder Border, Western Australia This large gold nugget was discovered in...
Edie Creek region, Wau Province, Papua New Guinea The Edie Creek area has been a historic gold and...
Serro Do Caldeirao, Pontes e Lacerda, Mato Grosso, Brazil Mining in the greater Mato Grosso region...
300 million years old Diamantina, Minas Gerais, Brazil Millions of years ago there was a...
Lightning Ridge, New South Wales, Australia Each oval cabochon, a solid black opal with a rolling...
Lightning Ridge, New South Wales, Australia An oval cabochon of solid crystal opal with a...
Lightning Ridge, New South Wales, Australia This stunning cabochon displays a rolling flash which...
Lightning Ridge, New South Wales, Australia A beautiful opal either by night or day, the present...
Lightning Ridge, New South Wales, Australia Suitable for mounting as a pendant, this large...
Ligthning Ridge, New South Wales, Australia Swirls of vivid green, blue, black, orange, pink appear...
Quispie, Quuensland, Australia A large oval cabochon, having an excellent layer of opalization to...
Millionaire's Gully, Lightning Ridge, New South Wales, Australia This magnificent free-form picture...
Lightning Ridge, New South Wales, Australia This triangular free-form opal has vivid red...
Lightning Ridge, New South Wales, Australia This is a large, thick and spectacular rectangular...
Quilpie, Queensland, Australia Thick seams of iridescent opal in blue, green and orange are seen in...
Queensland, Australia A rectangular plaque with contour polished face which reveals multi-color...
Yowah, Australia Large, free-formed domed cabochon displaying nodules of opalization in the...
Yowah, Queensland, Australia Each of oval outline, with brown-ochre matrix, having a vibrant seam of...
Yowah, Queensland, Australia Most likely cut from the same rough, each with rich, dark ironstone...
Formed of flat polished panels of fine quality Queensland, Australia boulder opal, book-matched to...
Queensland, Australia The face of this attractive specimen is almost entirely covered by a thick...
Consisting of polished panels of Queensland, Australia boulder opal, intricately inlaid to create a...
Lightning Ridge, New South Wales, Australia A memorable black opal by anyone's definition, "The...
Lightning Ridge, New South Wales, Australia This is a Lightning Ridge classic: an opal cabochon...
Lightning Ridge, New South Wales, Australia An oval cabochon of classic color and proportions...
Lightning Ridge, New South Wales, Australia A fine drop-shaped crystal opal, suitable for mounting...
Lightning Ridge, New South Wales, Australia A large oval cabochon black crystal opal having full...
Lightning Ridge, New South Wales, Australia An oval cabochon black opal with multi-color...
Lightning Ridge, New South Wales, Australia An oval cabochon with excellent visual spread, giving...
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