The rarest currency in Path of Exile 2 is the Mirror of Kalandra. This item is famously elusive, with many players spending over 10,000 hours without ever seeing one drop. Its rarity is matched by its immense power: it can create a perfect copy of any item, though the copied item is marked as a duplicate and cannot be further modified. Because of this unique ability, the Mirror of Kalandra commands an extraordinarily high value in the game’s economy, often worth more than 100,000 Chaos Orbs.

Besides the Mirror of Kalandra, other currencies considered rare and valuable include the Artificer’s Orb and Divine Orbs. These orbs are essential for advanced crafting and high-level trading, though they are more common than Mirrors. Exalted Orbs are also rare but more frequently found compared to the Mirror. They are prized for adding powerful modifiers to rare items, making them a cornerstone of crafting.

Rarity in PoE 2 is influenced by drop rates, limited sources, and their importance in crafting or endgame content. Some currencies have time-gated or boss-specific drops, increasing their scarcity. The Mirror of Kalandra remains at the top of the rarity hierarchy due to its low drop chance and unmatched utility.

The Mirror of Kalandra stands as the rarest currency in Path of Exile 2, followed by other high-tier orbs like the Artificer’s Orb, Divine Orb, and Exalted Orb. These rare currencies are highly sought after for their crafting potential and trading value, making them pivotal for players aiming to build powerful gear or engage deeply in the game’s economy.