OGI Systems, the Leading global developer of diamond manufacturing and grading tools, and ZVI YEHUDA the leading Israeli Color machines developer, announced today the incorporation that will enable their mutual customers to transfer the color grades of the rough diamonds automatically to OGI rough software.%%The new revolutionary Colorimeter model-F weight 1Kg, predicts white to yellow (D to K) and (Fancy yellow) rough diamonds at about + ½ color grade accuracy. it also suitable for brown hues in the color range D-F, give a computerized indication of both the yellow fluorescence (which indicates cloudiness in the stone), and the blue fluorescence. This new model detects fancy yellow in the following groups: No fancy, Light fancy yellow, Fancy, Intense fancy and Vivid fancy.%%The system is fully automatic, fully mobile and now also can be connected with USB to OGITender (the leader portable rough analyzer), OGIMarker® OGIScanner and CoMarker®. Now with just a click you can eliminate human mistakes, save time in tenders and get accurate pricing of the rough before purchasing.$$The colorimeters can also detect type IIA diamonds, and determine which are suitable for H.P.H.T. and which are not.