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A gemologist is a specialist in gems , that combined art and science of studying cutting , vaulting , buying and selling precious stones , some of the most precious stones that gemologists deal in
Include diamonds , rubies , sapphires and emeralds.
Gemologist value stones based on a number of factors, including cut , color , quality and clarity.
Gemstone investing can appeal to people who want to make quick returns , but it is highly speculative and should be left to the experienced profe