Missing Dark Portal Hearthstone on Classic World of Warcraft Character

The Classic Dark Portal hearthstone is only available to Classic players who purchased Burning Crusade Digital Deluxe, the upgraded version of the Dark Portal Pass. The item is not available on Classic Era realms, only in Classic Progression.

If you own the Digital Deluxe version, the hearthstone will be added to your collection automatically upon login. If you can't see the hearthstone, try exiting the game fully and then restart.