I'm playing the diamond mine mode in Bejeweled 3, and I could only dig to 240 meters. As I go deeper, the game gets harder. Is there a limit to the level I can dig, or is it an endless mine?
I don't know if there's a limit: presumably, you win at 1,000 meters, given that the depth meter has only three digits.
Here's, however, a youtube video showing off a depth of 960 meters. Keep on digging!