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Gemvue Diamond Tester Utilizes The Feature That Diamonds Have Very High Thermal Conductivity. Use It To Test Loose Or Mounted Stones. Calibrates To Adjust For Temperature And Size Differences Of The Stone. Equipped With An Ultraviolet Light To Test Fluorescent Reaction Of Stones. Comes With A Leather Case And Operating Instructions. Uses A Single 9v Battery (Not Included). (Note: It Does Not Differentiate Natural Diamond From Synthetic Moissanite.)
GemVue diamond tester utilizes the feature that diamonds have very high thermal conductivity. Use it to test loose or mounted stones. Calibrates to adjust for temperature and size differences of the stone. Equipped with an ultraviolet light to test fluorescent reaction of stones. Comes with a leather case and operating instructions. Uses a single 9v battery (NOT included). (NOTE: it does not differentiate natural diamond from synthetic moissanite.)