Where Diamonds are Mined.Argye mine located in the Kimberley region in the far north east of Western Australia. Owned by Rio Tinto, this mine is the world’s largest single producer of volume of diamonds. However, due to low proportion of gem quality diamonds it is not the value leader. It does produce 90-95% of the world’s supply of pink diamonds.

Although the technology for synthetic diamonds came into play in 1954, no synthetic diamonds were ever seen on the market until the 1990’s. This was due to the fact that it took many years for General Electric to produce a synthetic diamond that could compare with the quality of a natural diamond and when they figured out how to do it, they found that it cost more to produce a synthetic diamond than it did to mine and cut natural diamonds.

Don’t buy an expensive diamond without paying the extra cost of the certificate. If a dealer tries to convince you to make the purchase without the certificate, or if they want to use a company other than GIA, you can be sure that the dealer has probably greatly inflated the price of the diamond they have something that they are hiding from you.
When selling your Diamond ring or Diamond jewelry have the diamond appraised. In fact, have it appraised by two or three jewelers to get an accurate idea of the diamonds value. Tell the appraiser that you want the Rapaport Value. This is the wholesale value of the diamond, and it basically tells you the highest price that you can sell your diamond for. If your diamond has no certificate, you should consider getting a certificate from GIA. This may help you get a better price for the diamond as well.