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Ade Advanced Optics - On Sale Now! Save up to 4%


On Sale! Up to 4% off on Ade Advanced Optics products at The Special Guide. Hurry! Limited time offers. Offers valid only while supplies last.



Ade Advanced Optics Digital/electronic Gem Refractometer 1.4~3.0 Ri Gemological Gemstone Diamond Jewel Testing Tool
Ade Advanced Optics Digital/electronic Gem Refractometer 1.4~3.0 Ri Gemological Gemstone Diamond Jewel Testing Tool
In Stock
$260.00

mpn: unknown, ean: 0717029487612,

Each kind of gem has a typical refractive index due to its chemical composition and crystallization structure. Refractive index is one of most important optical parameter, through the parameters you can judge whether the gem is an anisotropic or isot...


External Monochromatic Yellow Light Gem Refractometer, + 1.80 RI Oil, Gemological. GIA TOOLS
External Monochromatic Yellow Light Gem Refractometer, + 1.80 RI Oil, Gemological. GIA TOOLS
In Stock
$140.98
$135.99
You Save: 4%

mpn: ExtGemRefra, ean: 0704405061382,

4.9 out of 5 stars with 7 reviews
Measuring Range: 1.30 – 1.81 RI Minimum Graduation (RI): 0.01 RI Illumination: Internal illumination with momentary switch Size: 30mm x 70mm x 130mm Scale Division: 0.01 nD Weight: 0.4 kg Ranges of Application: Laboratory, Gemology Filter: Polarizi...



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