|Added by||Iron Chests|
The Diamond Chest is an upgrade from the Gold Chest, both of which are added by the Iron Chests mod. It has 108 slots, which is 4 more than the Alchemical Chest (104), 27 more than the Gold Chest (81), and 81 more than a normal Chest (27).
Unless your administrator has added grief protection for these chests, they may not be grief-proof. Of course, this changes from server to server, so it's recommended that a trustworthy friend test it with you.