This reagent is obtained by disenchanting unique items. Oil of Conjuration: found within the portals and the optional caverns in Act 5 on Hell difficulty. Oil of Intensity: found within the Arachnid Lair, the Swampy Pit, the Flayer Dungeon and the temples which stand in Kurast on Hell difficulty. Oil of Augmentation: found within the Stony Tomb, the Halls of the Dead and the Ancient Tunnels on Hell difficulty. Oil of Greater Luck: found within the Cave, the Hole and the Pit on Hell difficulty. These reagents can be bought from a vendor in each town, except Oils of Greater Luck, Augmentation, Intensity and Conjuration which must be found in the respective Act side areas. Higher upgrade tiers get progressively more expensive, so be sure you're only upgrading items you plan on using for a long time.These reagents can be found by killing the appropriate monster:Ĭatalyst of Disenchantment: kill Andariel on Normal difficultyĬatalyst of Learning: kill the Summoner on Nightmare difficulty Rare items require Veiled Crystals to upgrade, and Legendary items require Baleful Fragments. Upgrading jewelry requires crafting materials and a small Gold fee, the same as with most crafting vendors. This has an extremely low chance of happening, but it's possible. Paradoxically, this can also mean upgrading your item lowers an affix value if it rolls a new, lower value than what's present on the item. This is why some upgrades might seem much larger than others.

In other words, upgrading your item will sometimes reroll affix values if it upgrades your item level to a certain breakpoint. This typically means your affixes will be increased by small magnitudes (0.5-1%), but item level dictates certain affix ranges.

Items in Diablo 4 can be upgraded up to four times, each upgrade increasing item level by a small amount. Similar to the Blacksmith, Jewelers can upgrade amulets and rings for a small crafting fee.

Diablo 2 socket weapons recipe