The World of Gold, Opals and Other Phenomenal Gems

Bonhams London
Los Angeles 7601 W. Sunset Boulevard Los Angeles CA 90046 Tel: +1 323 850 7500 Fax : +1 323 850 6090 [email protected]

Datum der Auktion: 20.05.2019

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Carved Opal, Smoky Quartz and Tourmaline Parrot by Erwin Klein

Idar-Oberstein, Germany Circa 1980 Retailed by Vacheron Constantin, Geneva, Switzerland Carved from a single piece of natural opal from Andamooka, Australia, with green tourmaline beak and ruby eyes rimmed in gold, raised on an 18K yellow gold branch, the black onyx base rimmed in 18K yellow gold

Los #: 600

Schätzpreis: 1.500 $ - 2.500 $

Datum: 20.05.2019

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Labradorite Carving of a Bird

Idar-Oberstein, Germany Depicting a finch, the body carved from a single specimen of labradorite from Madagascar, with rose-cut diamond set eyes, a tiger's eye quartz beak and gold vermeil feet. Length 3 1/2 in

Los #: 601

Schätzpreis: 400 $ - 600 $

Datum: 20.05.2019

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Labradorite Box with Excellent Blue Flash

Madagascar Formed of well polished slabs of bright blue labradorite, the hinged lid opening to reveal a black onyx lined interior. Measuring 3 1/2 x 5 1/4 x 1 1/2in

Los #: 602

Schätzpreis: 600 $ - 800 $

Datum: 20.05.2019

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Boulder Opal Waterfall Sculpture

Queensland, Australia Made by an Australian artist, this unique waterfall feature incorporates hundreds of boulder opal specimens which have been split to reveal their interior with opal veining apparent in the brown ironstone. Measuring 70 1/2in (179.1cm) x 34 1/2in (87.6cm

Los #: 603W

Schätzpreis: 5.000 $ - 7.000 $

Datum: 20.05.2019

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Large and Impressive Boulder Opal Carving of Sea Turtles

Queensland, Australia Carved from a single large, immense specimen of boulder opal consisting of brown ironstone with some opal veining. Measuring 43 x 18 x 17in (109.2 x 45.7 x 43.2cm

Los #: 604W

Schätzpreis: 2.000 $ - 3.000 $

Datum: 20.05.2019

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Boulder Opal Carving of a Rhinoceros

Queensland, Australia Idar-Oberstein, Germany Retailed by H. Stern Carved from a single piece of boulder opal, with blue veining of opalization in the brown matrix. Length 5in

Los #: 605

Schätzpreis: 500 $ - 700 $

Datum: 20.05.2019

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Labradorite Carving of an Eagle's Head

Madagascar Carved from a single specimen of labradorite, the blue sheen used to evoke the feathers of the majestic bird, raised on a black onyx base. height 8 1/2in (21.6cm

Los #: 606

Schätzpreis: 500 $ - 600 $

Datum: 20.05.2019

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Labradorite Box with Brilliant Blue Flashes

Expertly carved and polished from large slabs of labradorite from Madagascar, the box has been well matched at the seams, with a plated piano hinge opening to reveal a black onyx to the interior. Measuring 4 1/4 x 2 3/4 x 1 1/2in

Los #: 607

Schätzpreis: 700 $ - 900 $

Datum: 20.05.2019

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Four Dendritic Opal Cabochons

An unusual collection of four dendritic (or "moss" opals) including a blue opal, Peru, weighing approximately 42.77 carats; an orange opal, Chile, weighing approximately 76.81 carats; an oval green opal, Brazil, weighing 61.72 carats; and a translucent pale green opal, Brazil, 48.71 carats. (4

Los #: 608

Schätzpreis: 300 $ - 500 $

Datum: 20.05.2019

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Pair of Yellow Beryl Cat's Eye Cabochons

Brazil A well-matched pair of oval cabochons, each having a bright, golden yellow hue and strong, central eye. It is unusual to find yellow beryl displaying the optical phenomenon of chatoyancy, much less a pair of such stones. Total weight approximately 13.80 carats. Height 13.38 x 11.04 x 6.78mm

Los #: 609

Schätzpreis: 1.500 $ - 2.000 $

Datum: 20.05.2019

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Fine Large Moonstone

Burma Truly a stone for the serious collector, such large feldspar gems are no longer being exported from Burma. A mystical gem with a soft white, billowy schiller effect, known as adularescence, seen in only the highest quality moonstones. Weighing approximately 46.48 carats and measuring 22.64 x

Los #: 610

Schätzpreis: 2.000 $ - 3.000 $

Datum: 20.05.2019

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Rare Cat's Eye Moonstone

Burma A large and beautifully, polished circular cabochon of moonstone. It possesses a distinct and central cat's eye effect as well as an excellent, billowy adularescence. A perfect gem to be worn as a pendant stone or enjoyed in a cabinet display of phenomenal gemstones. Weighing approximately

Los #: 611

Schätzpreis: 1.200 $ - 1.500 $

Datum: 20.05.2019

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Large Star Moonstone

India A large, oval cabochon with milky white adularescence, which also displays the phenomenon of a four-rayed star at the apex of the dome. Weighing approximately 52.42 carats and measuring 27.32 x 18.65 x 14.34mm

Los #: 612

Schätzpreis: 500 $ - 700 $

Datum: 20.05.2019

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Rare Double-star Blue Sapphire - A Published Gem

Sri Lanka Polished as an oval cabochon with a high dome, this sapphire of classic Sri Lankan cornflower blue, possesses a very unusual form of asterism: when the stone is illuminated with a single point light source, two superimposed six-rayed stars appear. The rays of one star are almost parallel

Los #: 613

Schätzpreis: 5.000 $ - 8.000 $

Datum: 20.05.2019

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Fine Cat's Eye Moonstone

Burma A large oval cabochon moonstone of fine quality and transparency having the optical phenomena of both adularescence and also chatoyancy. Weighing approximately 36.23 carats and measuring 21.52 x 18.96 x 13.09mm

Los #: 614

Schätzpreis: 3.000 $ - 5.000 $

Datum: 20.05.2019

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Rare Gold-in-Quartz

Gympie, Queensland, Australia Weighing well over an ounce, this pretty specimen has value well beyond its weight for the crystallized gold growing in a protected pocket exposed by sawing open a larger rock cavity. Crystallized gold is rare for Australia, and this is uncommonly well displayed in a

Los #: 615

Schätzpreis: 700 $ - 1.000 $

Datum: 20.05.2019

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California Crystallized Gold --"The Dragon"

Eagle's Nest, Michigan Bluff, Placer County, California An exquisite miniature specimen with exemplary crystallization, with an arborescent string of crystals. The outline of this specimen has lead some to perceive a mythological creature or dragon. Zoomorphic specimens are always a sought-after

Los #: 616

Schätzpreis: 2.500 $ - 3.500 $

Datum: 20.05.2019

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California Crystallized Leaf Gold in Quartz

Harvard Mine, Jamestown Mining District, Tuolumne Co., California Comprising bright, lustrous gold crystals stacked high on a white quartz matrix. Weighing approximately 4.1 grams and measuring 18.91 x 14.04 x 13.03mm

Los #: 617

Schätzpreis: 500 $ - 600 $

Datum: 20.05.2019

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California Crystallized Gold

S. Fork Stanislaus River, Columbia Mining District, Tuolumne Co., California A fine specimen comprising an arborescent string of crystals with bright patina. Weighing approximately 9.7 grams (0.31 ozt) and measuring 25.89 x 21.95 x 3.99mm

Los #: 618

Schätzpreis: 900 $ - 1.000 $

Datum: 20.05.2019

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Two North American Gold-in-Quartz Specimens

The first, a thumbnail specimen, Nighthawk Lake area, Ontario, Canada, height 1.2 cm; the second, a toenail specimen of "mitten"-form and with slickenside formation, Montana, with the gold smoothed to a flat texture due to the frictional movement of rocks along two sides of a fault, height 2.6cm

Los #: 619

Schätzpreis: 300 $ - 500 $

Datum: 20.05.2019

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Crystallized California Gold from the "Mother Lode"

Motherlode, Mariposa County, California A beautiful thumbmail specimen featuring an arborescent string of gold crystals. Weighing approximately 4.15 grams (0.13 ozt) and measuring 23.09 x 8.47 x 5.29mm

Los #: 620

Schätzpreis: 500 $ - 700 $

Datum: 20.05.2019

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California Crystallized Gold

16 to 1 Mine, Alleghany Mining District, Sierra County, California An arborescent specimen of "tree form" which is a thumbnail classic. Weighing approximately 3.0 grams (0.96 ozt) and measuring 19.83 x 21.53 x 5.47mm mm

Los #: 621

Schätzpreis: 500 $ - 700 $

Datum: 20.05.2019

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California Leaf Gold-in-Quartz

Harvard Mine, Jamestown Mining District, Tuolumne County, California An exquisite thumbnail specimen with bright, lustrous leaf gold aesthetically perched atop a small specimen of translucent white quartz. Weighing approximately 1.2 grams (0.037 ozt). Height 5/8in

Los #: 622

Schätzpreis: 300 $ - 500 $

Datum: 20.05.2019

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California Gold Nugget

Placer County, California A classic river tumbled nugget with excellent three-dimensional form, capable of standing on its own. The patina is rich and warm. Weighing approximately 37.5 grams (1.20 ozt) and measuring 29.07 x 18.97 x 11.9mm

Los #: 623

Schätzpreis: 1.800 $ - 2.500 $

Datum: 20.05.2019

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Large Gold Nugget

California Having roughly the shape of a large arrowhead, this character-filled nugget has traces of limonite in the crevices. Weighing approximately 165.3 grams (5.31 ozt) and measuring 3 x 1 3/4 x 1/2in

Los #: 624

Schätzpreis: 8.000 $ - 12.000 $

Datum: 20.05.2019

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California Gold Nugget

A beautiful water-worn nugget having traces of quartz and oxides in the crevices. Weighing approximately 217.1 grams (6.98 ozt) and measuring 3 5/8 x 2 x 1/2 in

Los #: 625

Schätzpreis: 15.000 $ - 20.000 $

Datum: 20.05.2019

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Gold Nugget

California A hefty nugget with great three-dimensionality, having minor traces of white quartz in the crevices. Weighing approximately 67 grams (2.15 ozt) and measuring 1 3/4 x 1 x 3/4 in

Los #: 626

Schätzpreis: 3.500 $ - 4.500 $

Datum: 20.05.2019

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California Gold Nugget

An alluvial nugget of great character with a naturally pierced hole and minor oxides in the crevices. Weighing approximately 64.2 grams (2.06 ozt) and measuring 1 3/4 x 1 x 5/8 in

Los #: 627

Schätzpreis: 5.000 $ - 6.000 $

Datum: 20.05.2019

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California Crystallized Gold-in-Quartz

Colorado Quartz Mine, Mariposa County, California A classic example with unbelievable luster, the crystallization on this fine specimen is second to none. Total weight: 73.45 grams (50.17 grams gold net weight) and measuring 7.3x3.5x3 cm

Los #: 628

Schätzpreis: 80.000 $ - 100.000 $

Datum: 20.05.2019

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California Crystallized Gold--"The Bonsai Tree"

Colorado Quartz Mine, Mariposa County, California Minute crystallization of exquisite form characterizes this fine specimen and a brilliant contrast of the white quartz against the lustrous gold. Gross weight 41.38 grams and measuring 5.0 x 5.5 x 2.0cm

Los #: 629

Schätzpreis: 30.000 $ - 40.000 $

Datum: 20.05.2019