He's a gemologist at the Gemological Institute of America where he oversees diamond grading, colored stone identification ... determines a pearl's value. Natural versus cultured.
A great irony of pearl history is that the least expensive cultured pearl product in the market today rivals the quality of the most expensive natural pearls ever found. The price-value anomaly is ...
An curved arrow pointing right. South Sea pearls are the largest cultured-pearl variety, sometimes reaching over 20 millimeters in diameter. The Pinctada maxima oyster can take up to five years to ...
The star of the show was the Abernethy Pearl, a 10.91-carat specimen found in 1967, which achieved £93,951. While that sounds impressive, Fawcett says a similar marine-cultured pearl — from an ...
He's a gemologist at the Gemological Institute of America where he oversees diamond grading, colored stone identification ... determines a pearl's value. Natural versus cultured.
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