Gemological Tools

Portable Handheld Polariscope with Desktop Led Light

The 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 can also be used in identifying Moissanite and detecting strain in diamonds. Equally...

External Monochromatic Yellow Light Gem Refractometer, Gemological

Portable refractometer with easy to read viewer and scratch resistant lense with a rugged metal black or silver case. Measures Refractive Index (RI) from 1.3 to 1.81. 15mm eye piece and polarizing filter. Refractometers are tested for calibration at the...

Conoscope Interference Sphere Ball for Polariscope. Wide 15mm Lens. Gemstones

The conoscope is a necessary tool for use with a polariscope. Our conoscope is a strain free glass ball held within a black plastic protective case with convenient handle. The conoscope is used for magnifying the view of the axis through a polariscope...

Conoscope Interference Sphere Ball for Polariscope, gem testing, gemstones.

The conoscope is a necessary tool for use with a polariscope. Our conoscope is a strain free glass ball held within a black plastic protective case with convenient handle. The conoscope is used for magnifying the view of the axis through a polariscope...

Monochromatic Light source for Gems Refractometer. Gemstone Gemological Testing

This individual narrow band width(monochromatic) light sourse around 589nm It can be used on almost every gem refractometers out there! No matter GIA brand or generic brands. Simply use it like a flashlight. This listing is for the light source...

Pocket Diffraction Grating Spectroscope Gem Tool USA

Pocket Diffraction Grating Spectroscope, with fixed slit & fixed focus. Allows you to read a gemstone's spectral signature. Constructed of stainless steel & black acetol, 55mm long, 14.5mm wide, and weighs 28 grams. Comes in a protective carrying case...

10x21mm Triplet LED Illuminated Jewelers Magnifier/Loupe

KEY STRENGTHS: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 & stones like never before, a perfect light for viewing diamonds and other...

Calcite Dichroscope, GEM tools, Made in USA

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 useful with identifying gemstones that are still in the rough and when stones...

Medium Diffraction Spectroscope Gemological Gem USA

Handheld spectroscope allows you to read a gemstone's spectral signature. What is detects: absorption spectra. How to use: view the colour of a gemstone, either by shining a light (pen-torch) through the stone into the spectroscope if the stone is...