I'm leaning Pelt, and here's why. If you look at the ribbon on the right in the first photo, it appears that the color starts below the seam and that the ribbon just got flipped up and over to the other side of the marble.
I'm going to go in a little different direction for my Sunday best today. A reverse Jasper, just over 3/4" . . .
I really like this marble - not too easy to find.