Fluorescence
When exposed to ultraviolet light, about half of all diamonds will display fluorescence. The amount of fluorescence determines the level to which it effects value. Fluorescence is graded from None to Extreme, with several steps in between, and it will be indicated on the stone’s certificate.
November 14, 2009
Tags: determines, fluorescence, stones Posted in: Glossary
Pavilion depthAlong with crown height, pavilion depth determines the overall proportion and symmetry of a gemstone cut. |








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