Martin Rapaport is chairman of the Rapaport Group, founder of the Rapaport Diamond Report and the RapNet online diamond trading network. Rapaport has been called a "maverick" within the diamond industry for standardizing and publishing diamond prices. He has also been criticized for non-transparency in his methodology, as well as his silence over a corruption scandal involving the GIA, with which he has strong ties. Rapoport was an early proponent of the Kimberley Process aimed at limiting the number of "conflict diamonds" in worldwide circulation.