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Do you think these white sapphires are natural?

Lazybeesknees

Rough_Rock
Joined
May 10, 2016
Messages
4
I bought two sapphires from a store on eBay called BrilliantSolitaires and was assured they were naturally mined white sapphires. They are both Emerald cut, but one is 11x9mm, 6 carats and the other is 14x10mm, 9.70 carats. The seller also noted that they were HPHT treated. I went and got them inspected because they cost less than $200 in total. The lady told me they both were recognized as sapphires, but could not tell me whether or not they were natural or synthetic. I was hoping to get the larger one re-cut because the window is quite large, but I'm not sure it's worth the money. What do you think?

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dk168

Ideal_Rock
Premium
Joined
Jul 7, 2013
Messages
7,643
What was meant by having them "inspected" please?

I am no expert, however, in order to differentiate natural from synthetics, I believe one can only tell by using very high magnification under a microscope, to look for growth lines, natural or synthetic flaws etc...

Hopefully the experts will come alone soon to offer their advice.

DK :))
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
37,598
I've heard that it's quite common for eBay sellers to sell synthetic sapphires as HPHT. The tip off is the price of $10/ct.
 

dk168

Ideal_Rock
Premium
Joined
Jul 7, 2013
Messages
7,643
Both natural and synthetic Sapphires will have the same refractive index, therefore RI alone is insufficient to differentiate the two.

DK :))
 
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