Gem Instruments

Gem Tester Refractive index is one of most important optical parameter. Gloss of gem can be estimated by the parameter.The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive. Besides, index of double refraction...

Gem Tester Refractive index is one of most important optical parameter. Gloss of gem can be estimated by the parameter.The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive. Besides, index of double refraction...

Gem Tester Refractive index is one of most important optical parameter. Gloss of gem can be estimated by the parameter.The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive. Besides, index of double refraction...

The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive index. Besides, index of double of refraction can be also measured. Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive...

The refractive index is one of the most important optical parameters. The gloss of the gem can be estimated by the parameter.The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive. Besides, the index...

● LW:365nm● SW: 253.7nm● Weight: 3.0KG● Filter: Custom UV violet lens● Material: metal shell● Power Supply: 220V● Function: Observe the phenomenon of gems under ultraviolet light● Product dimension: 220x190x110/mm Caution:The invisible radiations emitted by UV lamps, particularly short wave, can be harmful to the skin，and dangerous to the eyes.These lamps...

Dichroscopes show whether or not a stone is dichroic (reflects 2 colors). This can help differentiate 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....

The spectroscope is an important tool of the modern gemologist.This concerns the infrared or near infrared spectroscopes.A handheld spectroscope for visible light shows the absorption lines of the elements involved in producing its color.It helps to separate ruby (chrome) against red or pink sapphire (iron) to name only one example.This...

The spectroscope is an important tool of the modern gemologist. This concerns the infrared or near infrared spectroscopes.A handheld spectroscope for visible light shows the absorption lines of the elements involved in producing its color.It helps to separate ruby (chrome) against red or pink sapphire (iron) to name only one...

Spectroscopes allows you to analyze a loose stone's spectrum. They help distinguish naturally colored diamondsA 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 or pink sapphire (iron). Spectroscope breaks up the...

Spectroscopes allows you to analyze a loose stone's spectrum. They help distinguish naturally colored diamondsA 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 or pink sapphire (iron). Spectroscope breaks up the...

Gem-Sepctroscope is widely used in scientific research, industry, and medical departments, also in diamond quality identification. It can rapidly find both emission and absorption spectrum lines. ● Wavelength ranges 400---750nm, ● Entrance slit width adjusting range: 0.2-3mm● Body Dia.: 20mm● Body Length:92.7mm● Body material: Metal  

Rubies (both genuine and synthetic) appear brilliant red under the filter. Synthetic blue spinel appears yellow-orange or pink while aquamarine and sapphires appear green or green-grey. Specification:● Dimension: 51.5x11.5mm● Body Material: Metal ● Package: by leather box & white box    

Discover the hidden colors of gems with the GDG-05 Dichroscope. This specialized tool allows you to identify pleochroism and determine the optic axis of gemstones, providing valuable insight into their quality and potential value. A must-have for any gemologist or jewelry professional. Specification:● Dimension: 50.7x10.1mm● Body Material: Metal ● Package:...

This 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 the stones. Multiple stones can be viewed at once.Chelsea filters are primarily used for spotting fakes added to colored stone parcels and...

Some gemstones appear to change colour when viewed through the Chelsea Colour Filter. This colour change helps identify many gemstones, distinguishing ruby from paste; distinguishing garnet (though not all garnets) emerald and aquamarine from paste. The Chelsea Filter also distinguishes many manmade stone such as cobalt-blue glass and blue synthetic...

This gemmological tool is helpful for identifying certain red, blue and green gemstones. It is used to determine whether a gemstone is natural or synthetic and can also be used for detecting Synthetic Blue Spinel as well as for detecting dyes in certain gemstones. The ChelseaFilter is a popular Gemmological...

  Specification:● Name: Jadeite Filter Hand Loupe 15x - 21mm● Magnification: 15x● Fully corrected triplet lens dia.: 21mm● Dimension: 50.9x20.8mm (L*H)● Package: by leather box & white box  

Developed with the Distance Education student in mind, this carefully selected package lets you set up your gem testing station at home. It includes the instruments you need for gem identification and on-going technical skills development.This package is excellent for completing distance education courses, developing confidence in testing and identifying...

Mini diamond ruler 10x - 21mmm