One of the most important tasks in the world of fine jewellery is the identification of natural gems. In the last century of gemology, the identification of gems has been carried out through what is known as the Gemological Tripod.
The so-called Gemological Tripod is based specifically on: the refractometer, the spectroscope and the microscope. Three elements that serve to analyze various factors.
The identification of gems using the Gemological Tripod
The refractometer is responsible for evaluating the refractive indices of a gem. It’s limitation is that it only reaches values of 1.80, so you can not know with this method indices for gems with a higher refraction.
The spectroscope provides the absorption spectrum of gems, and can be used in both disassembled and assembled gems. In this case it is a manual tool, so it is important that the gem has a good colour saturation and that the eye that observes it is very accustomed to evaluating this type of spectrum.
The gemological microscope
Thanks to the gemological microscope you can get a lot of information about a gem, such as, finish of the cut, hardness, inclusion, crystalline defects…
Currently, gemology of the 21st century can offer many more precious and sophisticated methods that allow us to unequivocally asses different gems. Many technological advances have been developed in the world of jewellery, and at Ramon we are constantly applying these new technologies.