The requested vessel with name DIAMOND LADY and MMSI:338121463 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
DIAMOND LADY N/A 378295000 Aug 03, 2017 14:00 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.