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Jewelry Refractometer, Portable Gem Tester, Professional Gemstone Tester, Gem Refractometer, Measures Refractive Index 1.30-1.81, Flashlight included, Easy to Use
Refractometer measures refractive indices from 1.30 to 1.81, used to identify many common gemstones, including but not limited to ruby, sapphire, jade, cat’s eye, amethyst, garnet, and opal
Refractometer built to provide stable and consistent performance
Refractometer designed to be portable and easy to carry around
Refractometer provides simple and straightforward operation
Gem refractometer is an ideal for tool for gemologists and jewelers
Package
-1 x Gem Refractometer
-1 x Electric Torch
-1 x User Manual
Boya Yuan
2025-01-12 15:37:55
This instrument can measure the refractive index of square stones, but not egg-shaped ones. All egg-shaped stones measure 1.775 refractive index.
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