Yes, their prices have been going up. I've seen the crest printed on ties but never a separate piece sewn onto the tie. This ones retail was 225$ according to the store tag. Quindicis also went from 265 to 275 and now 285.
I think you're right because I have seen it on other brands too such as Paul Stuart, but I thought that for his situation where the pants match exactly to the HF jacket but there are no tags, then this would be a strong support that they are a match. Maybe even a dead giveaway. :)