I know Karl has mentioned that GCAL's grading methods lack peer review... and recently, I saw on truthaboutdiamonds.com the follow exchange:
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Andy says:
August 31, 2012 at 7:30 am
Is there a reason why the signature cut diamonds at BN have a GCAL certification as well as GIA? Is GCAL a very legitimate outfit?
Andy
Reply
Mike says:
August 31, 2012 at 5:24 pm
GCAL is a meaningless certificate. BN uses it for their in house branding. Don’t waste money on a BN Signature.
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I understand that some might not find GCAL all that reliable, but is it downright meaningless?
And very few people seem to support BN signature... is it really that bad?
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Andy says:
August 31, 2012 at 7:30 am
Is there a reason why the signature cut diamonds at BN have a GCAL certification as well as GIA? Is GCAL a very legitimate outfit?
Andy
Reply
Mike says:
August 31, 2012 at 5:24 pm
GCAL is a meaningless certificate. BN uses it for their in house branding. Don’t waste money on a BN Signature.
_______________________________________________________________________________________________________________
I understand that some might not find GCAL all that reliable, but is it downright meaningless?
And very few people seem to support BN signature... is it really that bad?