The announcement of the new sightholders for the Diamond Trading Co. (DTC) has been delayed to April 29, reports add. The sightholders are those selected for the 2008-2011 contract period. The sightholder list as announced by the DTC, numbered to 75 rather than 93. With the sightholders in Namibia and Botswana, the list increases to 79. %% The delay is being seen as a grace period for DTC to explore some of the third-party verifications, as auditing firm Kroll mandates for all those companies selected as sightholders to undergo a verification stating that they are compliant with the DTC's Best Practice Principles. The DTC has decided not to replace any company if deleted from the list, with a new one. It will finalise the names from the current list itself.