Cube Recipes
Listed below are the current recipes for the Horadric Cube:
3 small rejuvenation potions = 1 full rejuvenation potion
3 gems of the same type and grade (lower than perfect) = 1 higher grade gem of the same type
3 runes of the same type (El - Lem) = 1 higher level rune
2 runes of the same type (Pul - Cham) = 1 higher level rune
1 rune + Key = 1 lower level rune
Blacksmith's Whetstone + non-ethereal weapon/armor = fully repaired and recharged weapon/armor
Blacksmith's Whetstone + arrows/bolts = fully recharged arrows/bolts
Sharpened Chisel + any socketed item = remove socketables from sockets (socketables will be destroyed)
Forged Tool + non-socketed normal/superior item = socketed item of the same type (5% chance an item become ethereal)
Lesser Malus + base magic/rare/set/unique/crafted/tempered item = exceptional version of the item
Greater Malus + exceptional magic/rare/set/unique/crafted/tempered item = elite version of the item
Magic Dice + magic item = rerolls stats on the magic item
Rare Token + rare item = rerolls stats on the rare item
Mystic Orb + magic item + perfect gem = crafted item
Kurast Sphere + unique/set item = rerolls stats on the unique/set item
Enchanted Malus + normal/superior item = magic or rare item of the same type (2/3 chance for magic, 1/3 for rare)
Dye + any weapon/torso/shield/helm = recolored item with the color of dye
Demon Shard + magic/rare/set/unique/crafted/tempered item = corrupted item
Tempering Catalyst + socketed normal/superior item = tempered item
Gem Pile = 3 gems of any grade and type
Unidentified Ring = magic, rare, set or unique ring (1/4 chance each)
Unidentified Amulet = magic, rare, set or unique amulet (1/4 chance each)
Unidentified Rune = 3 any runes
Staff of Kings + Viper amulet = Horadric Staff
Khalim Flail + Khalim Heart + Khalim Eye + Khalim Brain = Super Khalim Flail
Twisted Essence of Suffering + Charged Essence of Hatred + Burning Essence of Terror + Festering Essence of Destruction = Diablo's Soulstone
Key of Destruction + Key of Hate + Key of Terror = portal to the Matron's Den/Forgotten Sands/Furnace of Pain
Baal's Eye + Diablo's Horn + Mephisto's Brain = portal to Uber Tristram
Wirt's leg = portal to the Secret Cow Level
Cursed Skull = portal to the Skeleton Passage
The Secret Seal of Solomon = portal to Goetia
Goetia Seal + magic jewel + Mystic Orb = crafted jewel
Stacking
Cube an item to turn it into a stackable version of the item. Cube stackable version of an item with a single item to add to the stack. Cube stackable version of the item by itself to get a single item off the stack. Maximum quantity of the stack is 10.
List of items that can be stacked:
Perfect and flawless gems
Runes
Blacksmith's Whetstone
Sharpened Chisel
Forged Tool
Lesser Malus
Greater Malus
Magic Dice
Rare Token
Mystic Orb
Kurast Sphere
Enchanted Malus
Demon Shard
Tempering Catalyst
Dyes