Diablo 3 commodities come to Blizzard's real-money auction house.
Blizzard now allows the trading of gems, dyes, crafting materials, and artisan training materials in Diablo 3's real-money auction house. If you're sitting on piles of Radiant Star amethysts, now's the time to turn those into cold hard cash.
Diablo 3 players cannot, however, sell their in-game gold for real world currency yet via the real-money auction house. Blizzard says in an update that it hopes to enable gold commodity sales "in the near future." Diablo 3's real-money auction house launched in June, but limited player-to-player sales to weapons, armor and other equipment.
The addition of commodity sales in the real-money auction house hit alongside the 1.0.3b patch to Diablo 3. The patch address a handful of gameplay and auction house bugs.