Sizes

Every gem you dig up comes in a size. Bigger gems look bigger and sell for more coins.

First the game picks which gem you found, then it rolls the size. Size does not care which gem it is: a common gem is just as likely to be huge as a rare one. Luck does not change your size chances.

Sizes and mutations

Size stacks with mutations: the two multipliers multiply together. For example, a Colossal gem with the Shiny mutation sells for 5x times 2x, which is 10x its normal price.

Sell prices are rounded to whole coins, and every gem sells for at least 1 coin.