Basic Instruments

Refractometer, polariscope, gemological microscope, 10x loupe, specific gravity balance, daylight & UV lamps, hand spectroscope, Chelsea color filter, dichroscope, fiber-optic light. These are basic instruments used in the establishing the general gemological features of the gem in question.

Advanced Instruments

The following instruments are used for in-depth analysis of gemstones and are at the cutting edge of gemology. Only a handful of labs around the world have access to these tools, each of which is present in the GIT Gem Testing Center.

Energy Dispersive X-Ray Fluorescence Spectrometer (EDXRF)

• Distinguishing between synthetic and natural gemstones
• Analyzing quality enhancement methods of specific gemstones
• Analyzing elements to identify the geographical origin of the gemstones

Energy Dispersive X-Ray Fluorescence Spectrometer (EDXRF)

Fourier Transform Infrared Spectrophotometer (FTIR)

• Distinguishing between synthetic and natural gemstones
• Enhancement identification of specific gemstones such as jadeite-jade with polymer impregnation and emerald with oil or polymer impregnation

Fourier Transform Infrared Spectrophotometer (FTIR)

Raman Spectroscope

• Rapid gem identification (loose, mounted and rough)
• Enhancement identification
• Analyzing inclusions to determine geographical origin
• Analyzing diamonds that have undergone High Pressure High Temperature treatment (HPHT

Laser Raman Spectroscope (Raman)

UV-Vis-NIR Spectrophotometer

• Testing gemstones that have undergone heat treatment (such as ruby & sapphire)
• Distinguishing between synthetic and natural gemstones
• Determining the geographical origin of gems
• Enhancement identification
• Origin of color (natural or enhanced) in colored diamonds

UV-Vis-NIR Spectrophotometer

Soft X-Ray Unit

• Distinguishing between natural and cultured pearls
• Analyzing nacre thickness in cultured pearls
• Distinguishing diamond from imitation diamonds
• Analyzing the clarity enhancement by glass in gems such as diamond & ruby

Soft X-Ray Unit

Laser Induced Breakdown Spectrometer (LIBS)

• Detecting beryllium in beryllium-diffused ruby and sapphire

Laser Induced Breakdown Spectrometer (LIBS)

Sarin Diavision Proportion Meter

• Measuring proportion of cut diamond
• Directly generate Hearts and Arrows image of the analyzed diamond

Sarin Diavision Proportion Meter

Laser Ablation Inductively Couple Plasma Mass Spectrometer (LA-ICP-MS)

• Distinguishing between synthetic and natural gemstones
• Analyzing quality enhancement methods of specific gemstones
• Analyzing of trace to ultra trace elements to identify the geographical origin of the gemstones
• Detecting beryllium in beryllium-diffused ruby and sapphire

LA-ICP-MS