Three colourless synthetic diamonds sit on Sam Barbuzzi’s desk, though none are part of a parcel submitted for grading. Instead, the Gemesis-produced 40-pointers were sourced by one of Barbuzzi’s suppliers. Why? He wanted a closer look.
As an independent appraiser who neither buys nor sells diamonds, I often have to explain why my grades are substantially different from those provided by a client’s grading report from one of the many laboratories. Inevitably, the client wants to know how something like this can happen. Come to think of it, aren’t we all a bit curious?
HRD Antwerp is fine-tuning its diamond grading system. Starting in January, a ‘refined’ cut grade will be added. Instead of reporting ‘proportions’ and ‘finish,’ the new criteria will now be ‘proportions,’ ‘symmetry,’ and ‘polish.’