From Diablo Wiki
Item hunting is the biggest joy in playing the Diablo games for many players. The item system in Diablo III is bigger and better, but it's a refinement on the system used in Diablo II, not a radical change.
Items come in three large categories: Armor, Weapon, and Other
Armor refers to any non-held equipment. Most of them provide Mainstat, Vitality and other defensive bonuses.
There are 11 total armor slots:
- Rings (2 slots)
Weapons include anything held in the hand, even if they player doesn't hit monsters with it.
All classes can use all types of armor, although most classes have a special type for one of the slots. Weapons are restricted by class and each class has at least one special weapon type.
|Barbarian||Staves, Bows and Crossbows||Might Belts(Belts) and Weapons (1&2H)|
|Crusader||Crusader Shields(OH) and Flails (1&2H)|
|Monk||Spirit Stones(Head), Fists(1H) and Daibos(2H)|
|Demon Hunter||All 2H but Bows and Crossbows||Cloaks(Torso), Hand Crossbows(1H) and Quivers(OH)|
|Wizards||Polearms and 2H Maces||Wizard Hats(Head), Wands(1H) and Sources(OH)|
|Witch Doctors||Voodoo Mask(Head), Ceremonial Knives(1H) and Mojos(OH)|
Each of the followers can equip a weapon, 2 rings, an amulet and a special item particular to each follow
- The Templar can equip one-handed swords, axes, spears and daggers, along with a shield and a Templar Relic
- The Scoundrel can equip either bow or crossbow and a Scoundrel Token
- The Enchantress can equip staves, swords, axes, and maces along with a Enchantress Focus
Item Quality and Color
Every item has a quality level associated with it and each quality level has a color associated with it
- Junk - grey
- Normal - white
- Magic - blue
- Rare - yellow
- Legendary - orange
- Set - green
Ironically, the most common quality level of item drops is Rare.
Set items have their own color but are considered legendary in terms of drop rate.
There are five types of Gems in a range of qualities: Ruby, Topaz, Emerald, Amethyst and Diamond.
Check the main article for more information