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Difference between Fire and Brilliance

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itwontbeeasy

Rough_Rock
Joined
Jul 29, 2002
Messages
17
As a diamond newbie I've been trying to find the difference between 'Fire' and 'Brilliance'. I've seen many references but no clear definition. Can anyone explain the difference? I think fire is the rainbow colours and brilliance is the white flashes when the stone moves but I'm kind of unsure.
Thanks.
 

Garry H (Cut Nut)

Super_Ideal_Rock
Trade
Joined
Aug 15, 2000
Messages
15,404
The definitions there are unusual.
GIA has changed its definitions 3 times in the past few years.

Some of mine are at www.diamond-cut.com.au

Brilliance is white light return in a static view, fire is the same but colored and scintillation is the sparkle when diamond or light is moving.
But that is the simplified version.
 
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