Goodness! That's a challenge! Maybe though years of pouring over galleries of these species? But I suppose there are some thing to look for. Do you have Graptopetalum pentandrum superbum? Owning that unique and distinguished plant is an education! It has a powdered surface, complex hues and spectacular efflorescences. I believe Douglas Huth and Huth's Pink, as well as several other extraordinary multicolored Graptoverias (interspecific hybrids of Graptopetalum and Echeveria). I'd love to show you some of them.
In addition to Douglas Huth, there is a "Huth's Pink," and, to be honest (without ever having found or grown one myself), I find them difficult to tell apart. Here is the picture that your plant brought to mind, and I can show you many others that exhibit the sort of pink bruising your plant displays. (Please click to enlarge each photo; the thumbnails don't do them justice.)
I don't know if I can continue to post photos in one message, but I'll try. Here's another view of Huth's Pink (the plant on top is different).
Here is a photo I have of Ghosty. I tried to buy it together with Douglas Huth and Albert Baynes, but when the seller realized what she had in the box of rosettes she had posted (in a facebook group), she stopped replying to me and then blocked me to avoid selling them for the price she had listed!
Here's a pic of Albert Baynes, just for fun:
And this is another Graptoveria I would love to find named superbum 'Cotton Candy.'
As a Grand Finale, here is Graptophytum 'Mora.'
I do hope all these photos come through. If they do, please let me know what you think. If you like, we can chat further about these beauties.
Robert