Just checked the thai variegated plant books, they show 5 variegated types, 2 are listed as Nam Wa's and the other three are unidentified. Its hard to say too say much since some of the photos are close ups and it doesn't give the same effect as looking at a clump from a short distance. One does have more of the 'pearl look' but maybe not the same thing?? There are some other neat ones not in that book, like yellow/greens and a mostly yellow leaf type. If I didn't have to cancel my summer trip this year, i'd be buying some right about now
Tim Chapman