The Clear Gem is the most common type of gem in the Crash Bandicoot series. In most of the games, a clear gem is acquired if the player manages to break all the crates in a level. From Crash Bandicoot 2: Cortex Strikes Back onwards it can also be a reward for completing a secret area.

In Crash Bandicoot: The Wrath of Cortex, the color and shape of the clear gem obtained through completing a hidden objective or a secret area are slightly different to the one obtained through breaking all the level's crates, being darker and smaller.

In Crash Bandicoot Purple: Ripto's Rampage, clear gems are awarded for completing a bonus round or, if a minigame contains crates, breaking all of them.