Full Prayer XP from RuneScape gold Ash Sanctifier: When paired with the Hard diary tier,you get complete Prayer experience from ashes scattered by the Ash Sanctifier.

Cooking Burn Reduction: A 10% lower chance to burn food when cooking in Hosidius—an excellent alternative to Lumbridge's kitchen,especially since Hosidius's bank and range are on the same level.

This diary is a treasure trove of perks that improve Slayer,bossing,skilling,and general gameplay.
Lumbridge and Draynor Diary

The Elite Lumbridge and Draynor Diary stands out as a major milestone because of its high-level quality-of-life rewards:

Sixth Slayer Block Slot: This allows you to block one more Slayer monster type,giving more control over your assigned tasks and making Slayer training more efficient.

Fairy Ring Access Without a Staff: You can now use the fairy ring transportation system without wielding a Lunar or Dramen staff,freeing up a valuable inventory space. This benefit is especially handy for clue scroll hunters,raiders,and bosses alike.

Due to the diary's steep skill and quest requirements,completing it is a sign of a well-developed account.
Fremennik Diary

Ideal for Ironman accounts or those regularly battling Dagannoth Kings,the Elite Fremennik Diary offers these great benefits:

No Seal of Passage Needed on Lunar Isle: This frees an inventory slot for cheap RS gold other essentials during Lunar Isle activities.