What makes a gemstone precious? Is it beauty? Origin? Cut? History? For some, it is subjective. But for professional dealers, the origin of the stone plays a significant factor in increasing the value or price of the gemstone. Professional gemstone dealers and experts rely on gemological equipments in making their assessment. Gemological microscopes help in […]

The article is a witty, informative narrative that explains sapphires that have been treated with surface diffusion treated corundums (SDTCs). It chronologically explains the history of SDTC from the original Linde patents up to the current deep diffusion treatments and how to differentiae treated sapphires with real sapphires. These treatments make the sapphires shinier and […]

The Gemological Institute of America (GIA), as described in the original article, is a non-profit organization that is the foremost leader in laboratory, grading, and gemological standards in the market today. The organization is a combination of research center, vocational college, library and museum and gemology instrument shop. It has the world’s best gemological […]

Afghanistan is one of the many countries where various gemstones can be mined. The mined gemstones vary in size, color, and other gem characteristics when examined under gemological microscopes. Gemologists use gemological microscopes in classifying and identifying many gemstones. Gemological microscopes are also used by gemologists and gem artists in the cutting and designing of […]