Grievous Gladiator's Plate Gauntlets is part of the transmog set Grievous Gladiator's Plate Armor (Warrior only), which the Appearances collection lists in 2 versions. The other 6 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Grievous Gladiator's Plate Gauntlets Fits
Other Items Named Grievous Gladiator's Plate Gauntlets
4 other items in the current build are also called Grievous Gladiator's Plate Gauntlets. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Grievous Gladiator's Plate Gauntlets
Blizzard numbers items as they are created, so the named items next to ID 100523 (100518 to 100528) were usually added in the same batch as Grievous Gladiator's Plate Gauntlets: the same quest line, zone, vendor or reward set.