Well this was fortunate (for me).
I ordered the very distinct Edge of Joy last year in a package of two. One never budded and the other one gave me something else. I could not find what I received anywhere on line - thought it was Giselle but knew Giselle was more red/pink and mine is more burgundy or purple and pink.) So your posting NC suddenly made me realize this was it.
Dark foliage? Sends out mostly singles? Plant is about 3 1/2-4"? Blooms are smallish - 2 -3 "?
I think you have found it.
It's so perfect, it looks fake!