Diablo 4 Gold World bosses have some of the best drop rates for rare materials, including Stygian Stones. Make sure to participate in world boss events regularly to maximize your haul.

While the exact drop rates are not publicly disclosed by Blizzard, player experience suggests that elite enemies and world bosses provide the most efficient method for gathering Stygian Stones. Dungeon runs and Helltide events also contribute significantly to your farming efforts.

Group Play: Farming Stygian Stones in a group can speed up the process, as you can clear dungeons and events more quickly. This will increase the number of enemies you defeat per hour, thereby improving your overall farming efficiency.

Optimize Your Build: Use a build optimized for speed farming, focusing on AOE damage and movement speed. This will help you clear content faster and farm Stygian Stones more effectively.

Stay Updated: As Diablo 4 evolves, Blizzard may introduce new events, bosses, or dungeons that offer better drop rates for Stygian Stones. Keep an eye on patches and updates to ensure you're farming efficiently.

In conclusion, farming Stygian Stones in Diablo 4 materials for sale requires a combination of strategy, speed, and persistence. By targeting elite enemies, running high-density dungeons, and participating in world events, you can gather Stygian Stones efficiently and keep your gear at peak performance.