The World of Gemstones

Mahenge Spinel, Kenyan Tsavorite, Pink Sapphire

Classification of Precious and Semi-Precious St...

There seems to be a considerable difference of opinion among jewelers, traders & mineralogists on the subject of the classification of precious and semi-precious gems. The more science oriented professionals,...

Classification of Precious and Semi-Precious St...

There seems to be a considerable difference of opinion among jewelers, traders & mineralogists on the subject of the classification of precious and semi-precious gems. The more science oriented professionals,...