Diamond is a rare and valuable gemstone that players can find while mining, by opening geodes, or through fishing treasure chests. It can be sold for a high price, gifted to villagers for a significant boost in friendship, or used in crafting. Additionally, it can be placed in a Crystalarium to replicate over time, providing a steady income source or gifts for villagers. It's also one of the preferred items for several bundles in the Community Center.
The item ID for Diamond is 72
This ID will work on PC/Mac (Steam), PS4, PS5, XBOX One, and Nintendo Switch.
Spawning items in Stardew Valley is a little unsual and is not done with commands. You will need to utilize what is called a cheat to set your character's or animal name to the item id. To do this you cannot use just the item id, you will need to surround the item id with brackets. Ex. [72]
Spawning Using the Animal MethodTo spawn Diamond while using an animal, you will need to head over to Marine's Ranch and purchase an animal. Once you have have an animal chosen, name the animal with the item id with brackets like this [72] and you will receive the Diamond item. This method can be done using an existing character and is convenient but will cost some gold every time you want an item.
Spawning Using the Character MethodTo spawn Diamond while using a character, you will need to create a new character and name it with the item id with brackets like this [72]. You will then receive the Diamond item when you speak to a villager. This method is easy and free but cannot be performed on an existing character and you will be stuck with that name unless its edited.