Good Points

Playing a card from a waste pile or stock to the casket+35 Points
Playing a card from a waste pile or stock to the foundations+135 Points
Playing a card from the lid to the casket to the casket+35 Points
Playing a card from the lid to the foundations+135 Points
Playing a card from the casket to the foundations+100 Points
Removing a jewel from the casket+250 Points
Removing the last jewel from the casket+1000 Points

Bad Points

Every second of elapsed time-1 Point 
Every time Undo is used-100 Points

Completion Bonus

A Bonus, which starts at 5000 Points and counts down at a rate of 5 Points every second, is awarded if you manage to complete the game.

The maximum score possible is 12,960 (135 points x 96 non-casket cards to foundations) + 800 (100 points x 8 casket cards) + 4000 (12 jewels worth 250 points and the last jewel worth 1000) + 5000 Bonus = 22,760 Points !