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A Synthetic Diamond Overgrowth on a Natural Diamond

I saw this in a Rapaport news email I received this evening. A rather interesting story.
 
I'm not sure I totally understood the lab lingo but basically someone tried to cheat the system by growing a synthetic blue layer on top of a white diamond?

Don't you wonder what these types of con artists could achieve if they put the same amount of energy into a legitimate business? Le sigh.
 
If it was on the top of the stone only I'm curious what the stone looked like from the bottom. Did the growth on the top
make the whole stone look tinted blue (from the pavilion angle)?

It's nice to know that GIA caught it. I hope they are just as diligent when evaluating non-colored stones. Not sure if this "lab grown application"
would be profitable for non-colored stones?
 
I don't think they mean just one the table of the stone. I think by top they mean the outer layer
 
Why????
 
From the article it sounds like to me they took a pre-cut or at least preformed stone, covered it using cvd with blue diamond then recut it leaving a layer of blue diamond mostly on the top.
 
Oh, wow
The lab technician must have been confused for a minute....
 
whitewave said:
Oh, wow
The lab technician must have been confused for a minute....
Click to expand...
lol yea sure seems like it would.
I am pretty sure it caused a lot of excitement.
 
Interesting... and scary
 
Another reason why you should only consider diamonds graded by a reputable lab with active research, studies and education thru public documents. It is not just about couple downgrades in clarity/color.
 
The illustrations imply that the CVD superstrate was only on the table. How could that be viable from the side? Doublets are usually sold mounted--except when the cheap part is colored and the overlay is clear.
 
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