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On the 14th of March, the Bulgarian Gemological Laboratory had the privilege of participating in an enlightening seminar held in Plovdiv....

The Tolkowsky Proportions are a set of mathematical guidelines for cutting diamonds to achieve optimal brilliance, fire, and...

Sapphires, known for their stunning blue hues and exceptional durability, are among the most sought-after gemstones in the world. While...

Are you passionate about gemstones and eager to learn more about these beautiful natural wonders? Look no further than the Bulgarian...