Free Fire Diamonds allow you to purchase weapons, pets, skins and items in Store. You can also participate in Luck Royale and Diamond Spin to obtain various unique character skins, weapon skins, weapon upgrades and even cosmetic.
1- Go to this link
https://shop2game.com/app and choose the region.
2- You have to click on the game.
3- Please login to your account with ID player or FaceBook.
4- Choose the method (Voucher Garena).
5- Write the password for the card that you purchased, and the card will be charged successfully.