It's a beautifully cut diamond.
Diamond is a mineable gem that can be exchanged for dubloons at the Beakeasy penguin bar, teleporter cores at the 2 Stop Teleshop, and is used in several useful crafting recipes.
Diamonds can be found in small quantities at deep depths on all planets except barren planets, moons, and asteroid fields. They can also be found inside Diamond Rocks, Small Diamond Rocks underground or they can rarely be found in chests.
Each Diamond can be refined into 600 pixels using a Refinery.
| /spawnitem diamond