Back to Ganoksin | FAQ | Contact

Black light Checking


#1

Andrew, Genuine diamonds can be fluorescent under long and short wave
ultraviolet light. Some stones do and some do not. In some cases
they “glow” to the point of looking fuzzy looking which takes away
from the value. Other stones it increases the value of the stone by
as much as 10-20%.

Phillip Scott G.G.