Gemstone Slots is a 5 reel, 5 line slot machine that works a little differently than most games, as you MUST bet on all 5 lines. Unlike most multi-line games where incrementing your bet varies the number of lines played, adjusting your bet in Gemstone Slots changes the amount bet per line. Bet between 1 and 4 coins per line. This game was designed with the smaller player in mind, with a max bet of 10 cent coins and 4 coins per line - totalling a maximum of $2.00 per spin. Gemstone slots plays slowly, and franly it's a little boring in our opinion. While a 2000x jackpot sounds appealing, as you can't bet more than 40 cents on a line even that's only $500 in the unlikely event it's hit. .