The Palworld Diamond is a Material Item. The item itself is worth 12500 money, with a above average Rarity and cannot be crafted in palworld. You can also obtain Diamond by defeating the following pals: Frostallion, Jetragon, Paladius.
A rare gemstone that glows brilliantly.
Can be sold to a merchant for a high price.
How To Get Diamond
List of structures you can use to craft and or obtain a Diamond from in palworld