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How important is the HCA Score of a diamond? HCA Excellent vs HCA Very Good Scintillation

Thanks Todd. I think these are great options – I appreciate your help. [referencing a prior email message] I am working on contacting Brian Gavin and High Performance Diamonds. One thing I noticed is the Crafted by Infinity Diamond by HPD scored a very good for scintillation on the HCA, compared to the Brian Gavin diamonds that both […]

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