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optical lens gemstone polariscope
Selling leads
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... easy,fast,and without spoilage,it can also test the gemstones’ luster Many gemstones are double refraction(birefringence) on optical character. ...
2026-04-29 00:03:01
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... and assembled gemstone and for quality grading of both diamonds and colored stone. Specification: Magnification 7.0-45X Lighting Source Halogen ...
2026-04-29 00:03:01
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...Optic Fiber Light Gem Microscope with Magnification of 7X - 45X Model No.: FGM-R1A-15 Description: 1, With 0-40 degree incline, adjustable freely. ...
2026-04-29 00:03:01
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..., dark field and top light. 3, With Gemstone clip for holding stone. 4, With Two power supply systems: 3xAA batteries and/or DC adaptor. 5, World...
2024-12-09 10:54:02
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...illumination systems: bright field, dark field and top light. 3, With Gemstone clip for holding stone. 4, With Two power supply systems: 3xAA ...
2024-12-09 11:06:29
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... gemstone and for quality grading of both diamonds and colored stone. Description: Generation 6th of Arm type Gem Microscope, with classical base ...
2026-04-29 00:03:01
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... presence of traces of color(chromatic aberration)normally found at the outer edges of the lens;and visual distortion(spherical aberration), also ...
2024-12-09 13:32:31
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... Description: 1, With 0-40 degree incline, adjustable freely. 2, With Gemstone clip for holding stone. 3, With 4 illumination systems: bright field...
2026-04-29 00:03:01
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...gemstone clipper for holding stone. 4 illumination systems: bright field, dark field, top light and side light. 30W hologen light at the bottom. 3W ...
2026-04-29 00:03:01
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... body can be freely adjusted within the range of 0-40° 2, With Gemstone clip for holding stone. 3, With 4 illumination systems: bright field, dark ...
2026-04-29 00:03:01
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