.. checker plate is different to dimond plate;

check plate;
http://www1.istockphoto.com/file_thumbview_approve/4607365/2/istockphoto_4607365_checker_plate.jpghttp://www1.istockphoto.com/file_thu...kphoto_4607365 _checker_plate.jpg

Diamond;
http://diamondplatestore.com/library/DiamondPlate-Silver1.gifhttp://diamondplatestore.com/library...te-Silver1.gif