Like other biologically produced gems, pearls may contain pathogens. Photo by Laurel F. Licensed under CC By-SA 2.0.
Pearls are the only gems found within living creatures, both salt and freshwater mollusks. However, most pearls on the market today are cultivated,…
Gemologists can use dye testing to determine if a gemstone has been dyed to alter its color. Learn how to perform this procedure safely here.
Pearls are the only gems found within living creatures, both salt and freshwater mollusks. However, most pearls on the market today are cultivated,…
Acid testing is a destructive procedure gemologists and mineralogists can use to determine if some pieces are real or fake. Learn how to perform…
Cursed, perfect, or just huge, these famous pearls are fascinating. Read their history-rich tales filled with people like Kublai Khan and Elizabeth…
IGS Become Member