The original real-money Auction House was permanently shut down years ago. Today, items of Legendary or Set quality on PC are strictly upon dropping.

Rather than buying a specific physical sword, players pay for bulk drops (e.g., 200+ random legendaries for a class) or heavy farming for specific crafting materials like Death's Breaths or Bounty Caches. Buy D3 Items - Check the best Diablo 3 Items offers

On non-seasonal console profiles, restrictions are looser. However, on PC and in all Seasonal modes, trading is highly locked down. How Third-Party "Buying" Actually Works