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22x33 Oval blue turquoise cabochon from Blue Diamond Mine, AZ
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22x33 Oval blue turquoise cabochon from Blue Diamond Mine, AZ

22x33 Oval blue turquoise cabochon from Blue Diamond Mine, AZ
$100.00
$100.00
A.D. Leveridge Gauge: High Setting & Small Aperture Accessory (c.1965)
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A.D. Leveridge Gauge: High Setting & Small Aperture Accessory (c.1965)

A.D. Leveridge Gauge: High Setting & Small Aperture Accessory (c.1965)
$0.00
$0.00
AGS Darkfield Microscope 1949
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AGS Darkfield Microscope 1949

AGS Darkfield Microscope 1949
$0.00
$0.00
AGS Diamond Proportion Analyzer Black (c.1966)
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AGS Diamond Proportion Analyzer Black (c.1966)

AGS Diamond Proportion Analyzer Black (c.1966)
$0.00
$0.00
AGS Diamond Proportion Analyzer Gray (c.1966)
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AGS Diamond Proportion Analyzer Gray (c.1966)

AGS Diamond Proportion Analyzer Gray (c.1966)
$0.00
$0.00
AGS Shipley Diamond Colorimeter (c. 1960)
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AGS Shipley Diamond Colorimeter (c. 1960)

AGS Shipley Diamond Colorimeter (c. 1960)
$0.00
$0.00
Beck London 10x 20x loupe with case 1940s
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Beck London 10x 20x loupe with case 1940s

Beck London 10x 20x loupe with case 1940s
$0.00
$0.00
Beck Spectroscope No. 2447 (c. 1950s)
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Beck Spectroscope No. 2447 (c. 1950s)

Beck Spectroscope No. 2447 (c. 1950s)
$0.00
$0.00
Culti Original Diamond Selector I

Culti Original Diamond Selector I

Culti Original Diamond Selector I
$250.00
$250.00
Diamond Proportion Analyzer (GEM Instruments Corporation, c. late 1966)
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Diamond Proportion Analyzer (GEM Instruments Corporation, c. late 1966)

Diamond Proportion Analyzer (GEM Instruments Corporation, c. late 1966)
$0.00
$0.00
Dr. Hanneman's "Poor man's Chelsea Filter" 2000s
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Dr. Hanneman's "Poor man's Chelsea Filter" 2000s

Dr. Hanneman's "Poor man's Chelsea Filter" 2000s
$0.00
$0.00
Erb & Gray “Jewel" Refractometer (c. 1960s)
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Erb & Gray “Jewel" Refractometer (c. 1960s)

Erb & Gray “Jewel" Refractometer (c. 1960s)
$0.00
$0.00
Excel Diamond Sensor Diamond Tester 1980s
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Excel Diamond Sensor Diamond Tester 1980s

Excel Diamond Sensor Diamond Tester 1980s
$0.00
$0.00
GAAJ/ Marumo Gemstone Specific Gravity Scale
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GAAJ/ Marumo Gemstone Specific Gravity Scale

GAAJ/ Marumo Gemstone Specific Gravity Scale
$0.00
$0.00
GAGB Chelsea Colour Filter 1958
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GAGB Chelsea Colour Filter 1958

GAGB Chelsea Colour Filter 1958
$0.00
$0.00
GAGB Chelsea Colour Filter 1970s
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GAGB Chelsea Colour Filter 1970s

GAGB Chelsea Colour Filter 1970s
$0.00
$0.00

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