Can Orb of Des be bought on the auction house?

No. It binds when picked up, so it is earned as a drop, quest reward, or vendor purchase and cannot be traded or listed.

How much does Orb of Des cost on the auction house?

No auction house scans for PvP Horde yet. The price appears here after the first scan from the AHledger addon.

Common quest · item level 1 · requires 1 · id 210765

Orb of Des is a common quest item in World of Warcraft: Forever. It binds when picked up and is unique.

The item reads: "Flames and dark magic swirl through the orb, mesmerizing yet deeply concerning. It appears this was once half of a great weapon."

What is Orb of Des?: Orb of Des is a common quest item in World of Warcraft: Forever. It binds when picked up and is unique.
Can Orb of Des be bought on the auction house?: No. It binds when picked up, so it is earned as a drop, quest reward, or vendor purchase and cannot be traded or listed.
How much does Orb of Des cost on the auction house?: No auction house scans for PvP Horde yet. The price appears here after the first scan from the AHledger addon.
Is Orb of Des different in Forever than in Classic Era?: No. The Forever beta keeps the same item level, requirements, and vendor prices as Classic Era.