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Research Leaders with World Expertise

COLOURED STONES & PEARLS.

Accurate identification is essential in maintaining the commercial value of gemstones. It is also a required skill which enables jewelers to disclose to their customers the correct identity of the gemstones they sell.

By using standard gem testing instruments and techniques, trained gemologists can recognize most gem materials.

In some instances, gemologists may not be able to distinguish certain synthetic and laboratory treated gem materials using standard gem testing instruments , which can have almost the same visual appearance and gemological properties as their natural counterparts.

Use of advanced non-destructive advanced techniques like X ray imaging (pearls), spectroscopic, and chemical analysis helps establish criteria to distinguish all gem material.

6a00e554a1ee588834011570387f8a970c-800wiSeparation of natural from synthetic gemstones

Identification and disclosure of treatments on coloured stones

Country of origin determination for emeralds, rubies and sapphires

Identification of natural, saltwater cultured or freshwater cultured pearls.

 

CGL-GRS Swiss Canadian Gemlab President & Head Gemologist Branko Deljanin is a world-renowned research gemologist and expert in testing gems and coloured diamonds using standard, advanced, and specialized research instruments. Together with his vast experience and the expertise of a highly-qualified team of professionals, CGL-GRS Swiss Canadian Gemlab addresses the new gemological challenges and industry needs through specialized services in:

  • Country of origin determination for emeralds, rubies and sapphires
  • Identification of natural, saltwater cultured or freshwater cultured pearls.
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