| The 'natural' term does indeed imply that the color of the pearl has not been enhanced, nor was it treated- similar to how we use Natural Lavender color Freshwater pearl, etc
I did take the pearl course at GIA, and while enlightening I must say it is nowhere near as in depth as their colored stone or diamond courses are... I found myself wishing for more illumination into the world of pearls (thank you, Strack!!). I also must question their grading of overtone as 'orient'- I do believe they are two distinctly different visual phenomenon |