If you have Robux, the 2x and 4x Diamond Multipliers are the biggest "hacks" for farming. They stack for a total of 6x diamonds every time you level up or pick up a gem.
These are your quick wins. Do these first every time you log in to build a baseline of diamonds and XP. ROYALE HIGH GEM FARM SCRIPT
Make a wish every 2 hours. You can win diamonds, XP, or even a Halo. If you have Robux, the 2x and 4x
If you have access, a private server prevents competition for diamond spawns and eliminates lag during quests. If you have Robux