32mm Eyepiece Jewelry Gem Refractometer For Identifing Gemstone
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Jewelry and Gem Refractive Index Testing tool 1.35 - 1.85 Range Gem Refractometer Gem refractometer is the most important professional tool for identifing gem stones.It can test the gem refractive index easy,fast,and without spoilage,it can also test the ......
Shenzhen Fable Jewellery Technology Co., Ltd.
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Portable Optical Gem Refractometer , Presidium Gem Tester Primary Tool
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Optical equipments for Gem built-in Led jewelry Hand-Held refractometer Product description The Gem Refractometer is an important instrument which measures the refractive indices of stones. It has a pull out eyepiece and a high quality lens that gives ......
Fuzhou Lindian Technology Development CO.,LTD
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Jewelry Microscope Gem Refractometer High Hardness CZ Test Prism A24.6321
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Jewelry Microscope Gem Refractometer High Hardness CZ Test Prism A24.6321 Professional Optical Design, High Hardness CZ Test Prism, Clear Shadow Boundaries, Special Power Supply A24.6321 Gem Refractometer A B C Scale Range 1.35-1.85, Hard CZ Measuring ......
Opto-Edu (Beijing) Co., Ltd.
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Aluminum Alloy Gemological Refractometer Gemstone Testing Instrument FGR-003
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... of a gemstone, which often gives vital clues to the identity of a gemstone. Fable brand Refractometer provides a numerical reading from a scale you see when you look through the eyepiece and determine whether a stone with single or double refracting by...
Ningbo Vanco Instrument Co.,Ltd
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