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World class Gemological Testing Services for you.


Creating Impact through Gem Research & Testing

Any beautiful or valuable object is worth copying or imitated and that is what humans have been doing to rare & beautiful gemstones since decades. Synthetic gemstones have been in existence since 1885 when the first synthetic rubies were made in Switzerland. In fact the need for the first gem testing laboratory of the world was felt with the onset of cultured pearls in 1925 in London.


We at GRL specialize in testing, certifying & grading gemstones & diamonds with due professional standards that are maintained in the leading laboratories of the country. With expert training by leading institutions such as GIA & IGI, and sophisticated geological equipment from GIA and other leading suppliers, you can be sure of an unbiased and informed testing services for your items.


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Research Mechanisms and Analysis

Gemstone testing and research is a complex study of the physical & optical properties of the Gemstones. They are basically categorized based on their crystal structurespecific gravityrefractive index, and other optical properties, such as pleochroism. The physical property of "hardness" is defined by the non-linear Mohs scale of mineral hardness.

All these factors of cut and polished gemstones are studied & recorded for future references as well. Gemological microscopic study of the internal structure is used to determine whether a gem is synthetic or natural by revealing natural fluid inclusions or partially melted exogenous crystals that are evidence of heat treatment to enhance color.

The spectroscopic analysis of cut gemstones also allows us to understand the atomic structure and identify its origin, which is a major factor in valuing a gemstone. For example, a ruby from Burma will have definite internal and optical activity variance from a Thai ruby.

When the gemstones are in a rough state, the gemologist studies the external structure; the host rock and mineral association; and natural and polished color. Initially, the stone is identified by its color, refractive index, optical character, specific gravity, and examination of internal characteristics under magnification.

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