Read from the World of Warcraft client build files.
How Astral Gladiator's Silk Cap Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Astral Gladiator's Silk Cap suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 5 items nearest to Astral Gladiator's Silk Cap (item level 584) in item level among Armor > Cloth, Head slot, from item level 447 to 610.
Astral Gladiator's Silk Cap is part of the transmog set Astral Gladiator's Silk Armor (Mage only), which the Appearances collection lists in 3 versions. The other 16 pieces:
Items Numbered Next to Astral Gladiator's Silk Cap
Blizzard numbers items as they are created, so the named items next to ID 230390 (230385 to 230395) were usually added in the same batch as Astral Gladiator's Silk Cap: the same quest line, zone, vendor or reward set.