Pleochroism Color of Ruby Can Be Seen Under the Caltite Dichroscope2021-07-09 16:03:13 |
LED Light Source Gem Microscope with Magnification of 10X to 40X2021-07-19 16:16:38 |
Grating Gem Spectroscope With Adjustable Focus for Gem and Jewelry FGS-1A2021-07-09 16:49:16 |
Emerald Testing Chelsea Colour Filter
8 Items Gem Testing Instruments Mohs Gemstone Hardness Tester
Dual Use Synthetic Diamond Moissanite Tester With 0.66mm Probe
Complete Set Mohs Hardness Pencil Gemstones Testing 104mm*6mm
Optical Lens Desktop Gem Polariscope Built In LED Light
Index Wheels of 96 and 64 for Lapidary Machine with Function of Faceting and Polishing
Gem Faceting Machine with wheel index of 96 and 64, Voltage AC220V FJM-2014
Gem faceting Lapidary Machine with mainshaft Speed 2300-2800r/min FJM-2014A