Fascinating, thanks.
On the subject of diamond shaped UFOs, the Cash-Landrum incident is particularly intriguing.
https://en.wikipedia.org/wiki/Cash%E2%80%93Landrum_incident
It, the Rendlshan Forest incident https://en.wikipedia.org/wiki/Rendlesham_Forest_incident
and the Illinois Triangle https://www.thinkaboutitdocs.com/illinois-triangle-ufo-sighting/ are probably the three most convincing.
Just my opinion.