Graptoveria Debbie would be as close as I can guess

It's not E. 'Debbi,' although it does look similar. There is a new plant I've seen a few times lately that's a hybrid with Graptopetalum pentandrum ssp. superbum, and your plant looks pretty close to what I've seen. So my best guess is a Graptoveria with that species as one parent.

Here is photo of Graptopetalum pentandrum ssp. superbum - do you think they are same?
(The leaves on your look little thicker to me, but not sure).
Rina

It's definitely not a pure Graptopetalum pentandrum ssp. superbum, but I think it must be related.

Take a look at Graptopetalum 'Marquis de Sevine'; maybe that's the one.
Harry

I think it's a graptoveria bella, not sure at that

Graptopetalum paraguayense 'Ghost Plant" ? That's my guess