The list is updated once a month, usually on the last Friday of the preceeding month.
All you need to do is enter either your user id or the email address we have on record in the Forgot My Password form, found by clicking the Forgot My Password link on the Members login screen. If we find it on record, your user id and password will be mailed to your email address.
No, we don't deal in diamonds, rough or polished. This is to avoid any perceived conflict of interests.
There are many rules and regulations pertaining to the diamond trade in most diamond-producing countries. You would need to get in contact with the relevant authority dealing with precious commodities in the country in which you wish to deal.
No, we have a very small staff and are not looking to expand at this time.
It's amazing how many times this question is asked of us! Because of the vastly differing values, it's impossible to set an average. Some industrial diamonds (boart) are as little as US$1 per carat while some special diamonds are worth many millions per carat. This would give an average of "some" millions of US Dollars which is totally meaningless.
Trade discounts of between 60% (for a 0.30ct M I3) and 22% (for a 10.00ct D IF) are applied to the value of the polish you should recover from the rough diamond. Polishing costs of US$30-70/ct (depending on size and quality) are also deducted. A profit margin of 10% is finally applied to give the final pricing.