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