Lost a stack of diamonds

So I host a Minecraft for me and my friends. When I logged on today the entrance to my garden was blown up by a creeper. How my house was built was that I had no doors, it simply did not fit with the style of my house, and the entrance for the garden would protect me anyways. The gate was no problem, it was just like 6 blocks. But when I went inside to get materials to repair it, a creeper followed me into my house and blew up my ENTIRE storage system, so I needed to be quick. I knew that the items would disappear in five minutes. I thought I got everything but my diamonds, of all things my diamonds was stuck I a place where I could not get to them, and they despawned. So now I have two options. 1. I can prank them so hard that they regret they even knew about the server in the first place, but the rules on the server is so that I can’t grief, kill, or steal from them. So I’m gonna need some suggestions. 2. I can cheat the diamonds back with commands since I am the server host.

What should I do?