Review on VCCA High Accuracy Jewelry Diamond Tester II: The Ultimate Thermal Conductivity Meter for Novice and Expert Gemstone Selection by Kelly Haywood
Works great.: Diamond Tester
Received this after my wife went to our local jeweler to see if the item she found contained a real diamond. This did not happen, but he used one of these devices for the initial verification. She described it and I found it at Revain. I've found the device to be slightly faster on larger rocks than on tiny rocks or rocks surrounded by lots of metal, but from our limited testing it appears accurate. There can be a lot of instructions. clearer, hence the deduction of a star.
- Wide range
- Long delivery time
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