Questions about TRUE gsets

[impactHvH]

I was wondering methods people use to get items such as :

Diamond Chestplate

• Unbreaking V
  
• Protection V
• Fire Protection V
• Blast Protection V
• Projectile Protection V
  

This is just an example with the Chestplate, the question applies to all armor & weapons

 

[Asheey]

Store bought sets.