In the last week we have been reading about hundreds of man-made diamonds (MMD's) that were submitted to IGI for grading without disclosure. Various observers tried to delve into the sourcing of the stones. Rob Bates at JCK considered this a serious problem, as it could affect consumer confidence (rightly so), and expressed the hope that there will be some kind of "black box" solution. Chaim Even-Zohar went into a full story about the history of Gemesis, which is being mentioned as a possible source of the stones, though they totally deny that presumption. I suggest that the starting point should be a realistic assessment of what has occurred and has been occurring for some time. And what we need to consider for the future. MMD's (produced by HPHT and CVD processes) and HPHT treated diamonds have been in the market now for years. In both cases, the essential fact is that the temptation not to disclose is powerful. The added profits can be huge. ...
Observations on trends and events in the gem and fine jewelry business.