It appears that the TV astrologer, Russell Grant, is a Grantee of Arms from the College of Arms, London. Russell has his own web page on the topic here.
I plan to add his Arms to my Grant Armorial in due course. From his website I have had a go at emblazoning his Arms as below:
To be absolutely sure I will need to have the actual blazon from the Letters Patent. I’ve dropped Russell’s “team” a line and await a reply. Failing that, I will have to try other avenues.
My initial stab at the blazon is:
Azure two seaxes in saltire pommelled and hilted Or between four estoiles two in fess of the last and two in pale Argent.
I am sure some of my fellow heraldry enthusiasts can correct me.