Visit Bigo Live's official website and enter your Bigo ID. Once entered, kindly log in to your Bigo Live Apps and get the code from the personal message box.
Kindly confirm your Bigo ID and choose a region.
Select Codashop as payment option.
Once selected the payment option, you will be directed to the next page. Kindly enter the pin code purchased from Codashop and click on "submit".
Once you've entered all the details and completed the whole process, your diamond will be credited to your account shortly. Enjoy your game!