for anyone buying fancy yellows

VH (aka GroomZilla)

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This post was brought to you by the Church of Cut Quality.

Note: I am not an expert. Just a friendly neighbor.

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On 5/20/2004 7:31:27 PM CaptAubrey wrote:

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there are a number of ways, but knowing for certain can require expensive instrumentation if the clarity is high.

 

if the synthetic diamond has a noticeable flux inclusion, however, all you need is a loupe or microscope.

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On 5/21/2004 8:25:07 AM elmo wrote:

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I've seen photos where a piece of the metal catalyst is left in the diamond, but it's not always there.  Something tells me that the GIA would id these 100% of the time, and I hope nobody would purchase a fancy intense or vivid stone larger than melee without a GIA report.
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the major labs can all id them. there are certain specific characteristics that show up in synthetic diamonds and not naturals, but you need expensive instrumentation to perform the tests.