This item does not have any recipe because it is no longer, or was never obtainable.
The Diamond Horn is a hat item which was added on the 1st of June, 2017 as June 2017's Item Of The Month.
Function
You shoot lightning from your horn(s)!
Tired of tooting your own horn?
When equipped, it will grant the player the Energized Horn mod which allows the player to build one block further. The Diamond Horn is actually 3 items that can be changed by removing and equipping the item again. Doing so will change the horn into another one.
1st form (Diamond Horn): Retextured version of Unicorn Horn with Focused Eyes like punch effect.
Purchase the Diamond Horn for 100,000 in the Growtopia Store.
"June 2017: Diamond Horn! This amazing horn transforms each time you unequip it. Try all 3 flavors! It also boosts your build range. This item can only be purchased this month! It will never return, and cannot be obtained any other way! It is tradeable, though. There is a link in the /news if you'd like to see a short clip of the item in action before purchasing."
Every purchase will give 1 item.
Trivia
On the 1st of June 2017, a duplication exploit was found for the Diamond Horn involving the Phone Booth which resulted in 1300 players being banned. 600 of those were perma-banned. Some exploiters had their Diamond Horns removed and were unbanned.