Bejeweled 2: How do you match 8 gems in one move?

The closest I've got was 5 gems in one move -



Example:

The zero's below represent gems...



xxxxx

ooxoo

xoxxxBejeweled 2: How do you match 8 gems in one move?
I don't think you CAN match 8 gems because once you hit 3 gems, they disappear. Five gems is the most I've gotten, too!

clinique