Gems

Gemstones can be mined in veins rarely underground and are very valuable. Their only crafting use is to forge a Phaseblade; however, they are worth a large amount when sold to NPCs.

Amethyst

Amethysts are the most widely available and cheapest gemstones mineable (coming in at a measly 5 Silver Coins each). They can be used to construct Purple Phaseblades.

Topaz

Topazes are less common than Amethysts, and worth more (10 Silver Coins each). They can be used to construct Yellow Phaseblades.

Sapphire

Rarer than Topazes and worth more (15 Silver Coins each), Sapphires are only found towards the bottom of the Cavern Layer. They can be used to construct Blue Phaseblades.

Emerald

Found only in the Cavern Layer, Emeralds are very valuable (30 Silver Coins each). They can be used to construct Green Phaseblades.

Ruby

Rubies are the second rarest gemstone available (40 Silver Coins each). They can be used to construct Red Phaseblades.

Diamond

The most valuable gem available (80 Silver Coins each) and the rarest, Diamonds appear only in smaller veins near the bottom of the Cavern Layer. They can be used to construct White Phaseblades.