4 diamond shaped objects flying south to north above jets in the daytime.Very clear day with no clouds in the sky , there were 2 jets flying over but very high up with only the vapor trails visible . 4 diamond shaped objects much much larger than the jets flew over going from south to north. These objects flew above the vapor trails left by the jets . They were flying south to north at a moderate rate of speed. They appeared to be diamond shaped and a light gray or white on the bottom and no lights were visible (daytime) .I could only see these objects with polarized sun glasses on , when I took them off they were not easily visible . They were flying in a diamond formation with the rear one making an odd movement such as rotating or flipping , it was not flying straight on as the other 3 . They were very high up but still extremely large in size compared to any airplane I have seen . The jets which fly over daily are intercontinental flights flying at what I would say is maximum altitude but Im no expert .((NUFORC Note: Source of report indicates that the date of the sighting is approximate. PD))