It is a 10 line slot and most of the time you can play it at 10p a spin but in some casinos you have to play it at a minimum of 10p per line so a £1 per spin. I will have to say when playing 10p a spin the wins are not that great and the chances of making your first million are not huge but you can easily work up a good balance from this minimum bet.
I often like to play this slot around 50p a spin. Unfortunately I have never received 100 times my bet on this slot! The concept of the game is to simply get your matching colour jewels together. All colour matching jewels will explode and bring in new jewels for you - thus creating more wins. The only thing is the wins like I said are not that great.
This slot is okay if you are looking for a bit of fun. Even though I would say its not a serious slot for gamblers - I have read some pretty amazing wins being taken from this slot but I think that is from people betting in excess of £10 a spin!