Can Arcane Orb 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 Arcane Orb cost on the auction house?

Normal Alliance US is scanned, but no scan has caught a listing of it there yet. The price appears here after the first scan that does; vendors pay 4s.

Is Arcane Orb different in Forever than in Classic Era?

No. Forever keeps the same item level, requirements, and vendor prices as Classic Era.

Arcane Orb

Uncommon miscellaneous held in off-hand · item level 10 · id 7507

Normal Alliance USscanned 34 min ago

Unchanged from Classic Era in World of Warcraft: Forever (build 1.60.1.70862): same item level, requirements, quality and vendor price. Every item changed from Classic Era.

AlsoSeen in Undercity Deals on Normal Alliance US

Reference values

Vendors buy for

Vendors sell for

The floor and the ceiling until the auction house opens: no one lists below the vendor price for long, and nothing crafted sells under its reagents. Auction prices for Normal Alliance US appear on this page the moment a scan catches a listing.

Latest price · Normal Alliance US

Normal Alliance US is scanned, but no scan has caught a listing of Arcane Orb there yet. Its price appears here after the first scan that does. Have the addon and you can check the house yourself.

About Arcane Orb

Arcane Orb is an uncommon miscellaneous held in off-hand armor piece in World of Warcraft: Forever. It has item level 10 and binds when picked up. It gives +1 Spirit and is usable by Mage only. Use: Restores 160 mana.. Sold by vendors for 16s, who buy it back for 4s.

Quick answers

What is Arcane Orb?: Arcane Orb is an uncommon miscellaneous held in off-hand armor piece in World of Warcraft: Forever. Sold by vendors for 16s.
Can Arcane Orb 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.
What are the stats on Arcane Orb?: +1 Spirit. Usable by Mage.
What does Arcane Orb do?: Use: Restores 160 mana..
How much does Arcane Orb cost on the auction house?: Normal Alliance US is scanned, but no scan has caught a listing of it there yet. The price appears here after the first scan that does; vendors pay 4s.
Is Arcane Orb different in Forever than in Classic Era?: No. Forever keeps the same item level, requirements, and vendor prices as Classic Era.

Classic Era vs Forever

Unchanged from Classic Era: Arcane Orb keeps the same item level, requirements, stats, and vendor prices in Forever.

Era values from Blizzard's Game Data API; Forever values from Forever's game data.

Details

Class: Armor
Subclass: Miscellaneous
Quality: uncommon
Slot: Held In Off-hand
Item level: 10
Binding: Binds when picked up
Vendor sell: 4s
Vendor buy: 16s
Blizzard item id: 7507
Client build: 1.60.1 (build 70862)

Where it comes from

Not tradeable. It binds when picked up, so it is earned in play and never listed on the auction house.
Vendors sell it for 16s and buy it back for 4s. That is the ceiling for an auction price while vendors stock it.
Quest reward from The Balnir Farmstead, Mage-tastic Gizmonitor.
Sources are what 7 players running the addon saw in game, summed across everyone who contributes; a rate needs at least twenty loot windows.
Disenchants into Strange Dust, Lesser Magic Essence, worth about 1s 40c on Normal Alliance US today. Odds below.

Disenchants into

Strange Dust80% of the time · 1 to 290c
Lesser Magic Essence20% of the time · 1 to 21s 8c

Expected value 1s 40c per disenchant at Normal Alliance US medians.

Selling the materials on: Strange Dust about 4,600 a day, listings clear in under a day; Lesser Magic Essence about 2,400 a day, listings clear in under a day.

Vanilla disenchant tables by quality and item level; the same estimate the addon shows in tooltips.

Similar miscellaneous items in WoW Forever

Every miscellaneous item in the catalog Every armor item in the catalog