Gem Instrument / Gemological Instrument 

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Polariscopes XHST1022 are used to quickly and easily check if gemstones are single or double refracting. It Is very useful in identifying Moissanite and detecting strain in diamonds and other gems. It is also used to separate synthetic amethyst from genuine. This desktop instrument has a built in light source.
specification:
Power input: 110V~220V 50HZ
Storage Temperature: 10-35¡ãC
Gross Weight: 750g

 Hand Held Polariscope XHST1023

Dichroscopes XHST1024 show whether or not a stone is dichroic (reflects 2 colors). This can be helpful in differentiating stones of the same color from one another. Dichroscopes can be useful with identifying gemstones that are still in the rough and when stones are set and difficult to get to with other instruments. This filter XHST1025 is designed to transmit only deep red and yellow-green light (best obtained under strong electric light). Just hold the filter close to your eye and look at the stones. Multiple stones can be viewed at once. It is helpful with identifying certain red, blue and green stones. Chelsea filters are primarily used for spotting fakes added to colored stone parcels and mixed in jewelry, and to differentiate emerald from emerald look-alikes, it is also useful for checking aquamarine and sapphires.
With the filter emeralds usually appear distinctly red or pinkish in color, while most imitations remain green. In rare cases certain emeralds, most notably from South Africa, may not show any pinkish color at all. A synthetic emerald will react the same as a genuine one.

Rubies XHST1026 (both genuine and synthetic) appear brilliant red under the filter. Synthetic blue spinel appear yellow-orange or pink while aquamarine and sapphires appear green or green-grey. Illuminated Loupe ( LED LIGHT ) XHST1027
10X-18MM

Product Name: XHST1020
10X and 20x 		Product Name: XHST1021
10X-21MM

Pocket GEM Digital Gauge XHST1028
Measuring Range:0-12mm/0-0.5"
Resolution:0.01mm/0.0005"
Accuracy:¡À0.02mm/¡À0.0005"
Repeatability:0.01mm/0.0005"
Maximum response speed:1500mm/s
Alarm:Voltage low,Over speed
Power supply:Sliver oxide battery SR44
Battery life:Approx.2 years
Operation Temperature rage:0-40¡æ
Storage Temperature range:-20¡æ-70¡æ 		Pocket GEM Gauge XHST1029
Measuring Range:0-10mm
Resolution:0.1mm
Accuracy:¡À0.1mm
¡¡

GEM Calper DC-3

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 ( If you need user manual or E-catalogue for above meters, please ask for at: xiushunjie@gmail.com )