Gain Express Holdings Ltd.

The GR-701, commonly known as Gemstone Refractometer, is the primary and most powerful tool in identify and authenticate polished precious and semiprecious gemstones and observing....

This handy piece of equipment is perhaps the most important tool in gemology, spectroscope breaks up the light being transmitted from a gemstone into its spectral colors, which....

A handheld spectroscope for visible light shows the absorption lines of the elements involved in producing its color. For instance, it helps to separate ruby ( chrome) against red....

CLMG-7205 detects the absorption of spectra. It is use to view the colour of a gemstone, either by shining a light ( pen-torch) through the stone into the spectroscope if the....

Dichroscope 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....

The CLMG-7202 polariscope is use to test cut or rough gemstones. Allows two polarising filters to observe the structure and optical properties of precious stones or minerals. It....

The polariscope is an instrument specially design for analyzing and viewing gemstones. This is also use to check if the gemstone is doubly or singly refractive. This portable....

This technologically enhance tester is design to identify real diamonds from non-diamonds and diamond simulants with a single step. It does not need a separate diamond selector....

Made with precision and HIGH QUALITY and one of the most important tools used to inspect gemstones and other jewelry. It have special lenses that allow our eyes to focus on an....

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Ideal for use in poor lighting conditions, this 10x lighted loupe features a 21mm lens and contains six bright white LED lights to illuminate the field of view & ....

This Chelsea Filter 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....

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.....

This multi-use desktop LED light is ideal for a variety of purposes but is most suited to use with a polariscope or darkfield loupe. The light is composed of 3 white LED bulbs -....

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Does a poorly lighted or dark area hinder you from seeing the magnified part of an object? Worry no more!

GM-1018 folding loupe offers high quality 10X, 21mm....

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This 10x magnification lighted loupe features a 21mm triplet lens and contains six bright white LED lights to illuminate the field of view & stones like never....

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Ideal for use in poor lighting conditions. GM-30X offers 30 times magnification power for extra sharpness and clarity in a 21mm colorless optical glass lens, ....