Brocade Cloak

About 5s 0c on Beta · Horde (5 hours ago), 5s 0c on Beta · Alliance (1 day ago), and 5s 0c on Beta · Horde (1 day ago), from player scans. A vendor pays 2s 81c, so the auction house pays 1.7× more.

No. It is in Classic Era too, with the same item level, vendor price and stack size.

Sell it on the auction house. After the 5% cut a stack of 1 brings about 4s 75c there, against 2s 81c at a vendor.