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Rainbow colors on the ruby

mastercut

Shiny_Rock
Joined
Mar 29, 2009
Messages
126
Hello,
I own a rather nice ruby that (as far as I know) is heat treated. I haven´t appraised it yet and will do soon, but I would like to ask anyway... The ruby shows a rainbow like appearance on some parts of its surface - like a petrol on the street in fact :) What could it mean?
 

LD

Ideal_Rock
Premium
Joined
Jun 29, 2008
Messages
9,707
Has it got a lab report? What you're seeing could also be evidence of lead fissure filling. A GOOD appraiser and one used to identifying treatments may be able to tell you whether he/she thinks it's been filled but my preferred route (especially if the Ruby has a significant value to you) would be to get it checked by a reputable lab. Unfortunately treating rubies is fairly common place now with dying, filling etc etc. Fingers crossed yours is heat only.
 
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