Don't know - Just had a look at my R badge that's been in my desk drawer for the last 5 years....but I would try soaking it in this stuff
3M Scotch Weld Citrus Cleaner Spray 500ml 50098 Grease Oil Dirt Adhesive Remover | eBay
It's brilliant for removing adhesive - used it myself today on another project - I'd try giving it a good few sprays over the course of an hour, enough for it to penetrate well between the silver and the red, then trying to prise it out with a pin - it's got a bit of bend in it
Failing that - drill a couple of small holes from the rear - let loads of the same stuff penetrate into them...then try pushing from behind
What do you have in mind - some sort of SMD project?