Sylvan Cloak

About 1g 88s on Beta · Horde (6 hours ago) and 97s 0c on Beta · Alliance (10 hours ago), from player scans. A vendor pays 7s 44c, so the auction house pays 24× 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 1g 78s there, against 7s 44c at a vendor.