Gemmological

Gem Loupes

R-G1081 Gem Loupes Triplet 10x (21mm),

R-G1081

 R-G1020 Gem Loupes Triplet 20X (21mm

R-G1021 Dual Loupe Triplet 10x&20x (18mm/12mm)

R-G1021

R-GM1021i-P

10x Triplet 21mm diameter lens

Illumination by 6 LED’s

Supplied in faux leather case

 

 

R-GM1018i

10x doublet 21mm diameter lens

Illumination 1 LED

Supplied in plastic case.

 

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DS-11 Diamond Tester

Distinguishes the true and false diamond, it shows the result of measuring with 2 kinds of sounds and 3 kinds of coloured LED.

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G-DFL

Dark field loupe with a special area that enables you to view a gem against a black background with strong lateral lighting.

10 x magnification as in a standard loupe

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Gemmological Refractometers

Gemmological Refractometers are used to measure the Refractive Index of gemstones, as well as the index double Refraction. Through the parameter you can judge whether a gem is uniaxial or biaxial photo-positive or photo-negative.

RGM-900: Proffesional Gemmological Refractometer  1.30 to 1.81 RI ± 0.02 (no illumination)

RGM-600I LED: Gemmological Refractometer  1.30 to 1.81 RI ± 0.02 (LED illumination)

RGM-700: Gemmological Refractometer 1.30 to 1.81 RI ± 0.02 accuracy with LED illumination built in.

RGM-RIoil: Index oil RI 1.79 3ml(10g) bottle

RGM900 brochure:RGM-900.pdf

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G-UV Cabinet with UV Long/Short Wave Lamp

Gem Cabinet for Shortwave / Longwave Ultraviolet Lamps

Power input 240V/50Hz

Wavelength SW 253.7 nm, LW 365 nm

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G-HHPol Hand Held Polariscope

In case with attachable torch to check if gemstones are single or double refracting. Ideal for field use

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G-Pol Bench Polariscope

Polariscopes are used to quickly and easily check if gemstones are single or double refracting. Very useful in identifying Moissanite, and detecting strains in diamonds, and other gems. Polariscopes are also used to separate synthetic amethyst from genuine. This desktop instrument has a built in light source.

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G-D Dichroscope

Used to show if stone is Diachroic (reflects 2 colours) Used to differentiate stones of the same colour, useful to identify Gems that are still in the rough, or in a setting.

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G-RF Ruby Filter

Ruby Filter is a filter that is extremely useful in differentiating red stones such as Ruby, Spinel, Tourmaline, and Garnets from others that might look similar in comparison. Using it is as simple as holding the filter close to your eye, look at the stones, examine your gems and reveal their true identity.

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G-CF Chelsea Filter

Designed to transmit red & yellow green light. Emeralds appear red or pink in colour while most imitations remain green.

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SH (Japan) Hand Spectroscope

SH-202 (Japan) Hand Spectroscope with adjustable slit   high quality

SH-205 (Japan) Hand spectroscope with adj. slit and scale

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G-HS (Chinese) Hand Spectroscope

The hand held spectroscope in visible light shows the spectral lines of the element that produces its colour. Proper use requires training and use of appropriate light sources. It helps to separate ruby (chrome) against red or pink sapphire (iron) to name only one example.

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