Advanced Instruments
The GWLAB laboratories are equipped with state-of-art scientific equipment, together with other traditional gemological instruments, paralleling leading gemological laboratories worldwide. As part of its goal to provide highly reliable results, the suite of advanced instruments in the laboratory is used to assist in confirming mineralogical identification, origin, treatments, and other properties.
GWLAB team inspects the spectral readings of a gem
The advanced instruments used by the GWLAB laboratories are:
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Gemewizard® GWLAB uses Gemewizard® systems and technologies for the definition and grading of colors of colored diamonds and colored stones. The suite of products developed by Gemewizard® is based on the company’s groundbreaking color communication technology, called GemeSquare™. |
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Raman Spectrometer The GWLAB Raman spectrometer is used to observe vibrational, rotational and other low-frequency modes in a substance. The device, tailored specifically for gem solids, enables the identification of minerals and the existence of treatments (such as coating, dyeing and fracture filling). |
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Photoluminescence Spectrometer The Photoluminescence (PL) spectrometer measures the phenomenon of light emissions from substances, after their absorption of photons. The GWLAB's broad range PL device, tailored specifically for diamonds and colored stones, enables the identification of minerals, existence of treatments (such as heating, HPHT, irradiation, dyeing and fracture filling), geographic locality and synthetic origin. |
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FT-IR Spectrometer The Fourier-transform infrared spectrometer (FTIR) measures the absorption, transmittance and reflectance of a substance in the infrared spectral region. The GWLAB's mid-FTIR device enables the identification of a diamond type, synthetic origin, geographical locality, and the existence of treatments (such as heating, irradiation, fracture filling and multi-step processes). |
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UV-Vis Spectrophotometer The Ultraviolet-visible (UV-Vis) spectrometer measures the absorption (or reflectance) of light from a substance in the ultraviolet to visible spectral region. The GWLAB's UV-Vis device enables the identification of a diamond type, synthetic origin, geographical locality, and the existence of treatments (such as irradiation, coating, dyeing and fracture filling). |
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Screening instruments The UV-Vis-, FTIR-, and Phosphorescence-based spectrometers, developed specifically for diamonds, enable preliminary sorting of treated and synthetic diamonds. The GWLAB's screening devices are used for the identification of possible HPHT treatments and synthetic origins in diamonds. Stones identified by the devices as "needed further testing" are referred to other advanced instruments. |
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To find out more about ordering information from the GWLAB laboratory, please contact us.