Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Amethyst Kingdom	Finish Level Three.
Amethyst Master	Get an S rank in Level Three.
Citrine Cavern	Finish Level Four.
Citrine Master	Get an S rank in Level Four.
Diamond Factory	Finish Level Five.
Diamond Master	Get an S rank in Level Five.
Emerald Master	Get an S rank in Level Two.
Emerald Sky	Finish Level Two.
Fully Polished	Buy every upgrade.
Gembreaker	Get a 100 kill streak.
Gemcutter	Get a 50 kill streak.
Gempocalypse	Get a 200 kill streak.
Gemtastrophe	Get a 150 kill streak.
Obsidian Keep	Finish Level Eight.
Obsidian Master	Get an S rank in Level Eight.
Ruby Master	Get an S rank in Level Seven.
Ruby Space	Finish Level Seven.
Sapphire Master	Get an S rank in Level One.
Sapphire Ocean	Finish Level One.
Stone Graveyard	Finished Level Nine.
Stone Master	Get an S rank in Level Nine.
Topaz Master	Get an S rank in Level Six.
Topaz Temple	Finish Level Six.