Here is the full list of all 48 Iesabel achievements.
Max an active skill
Max a passive skill
Reach the 11th level
Reach the 22nd level
Reach the 33rd level
Reach the 44th level
Reach the 55th level
Reach the 66th level
Max a least one characteristic
Have an epic/unique/legendary item equipped in every slot
Complete Iesabel on easy difficulty mode
Complete Iesabel on medium difficulty mode
Complete Iesabel on hard difficulty mode
Craft and enchant any rune
Complete Act 2 with running toggled off
Kill the Black Widow without receiving damage
Complete a location killing all the enemies and not losing any health
Complete all quests
Find all stone portals
Join a multiplayer game
Complete the game in co-op
Host 30 servers total
Play a 5-player game
Talk through every dialogue in the game. No skipping
Watch the credits
Kill any boss while having <10% HP
Don't use Amulet of life-saving throughout the entire game
Gather a total of 150.000 gold
Gather a total of 500.000 gold
Open 30 chests
Open 100 chests
Destroy 30 barrels
Destroy 100 barrels
Plunder 30 bodies
Plunder 100 bodies
Kill 2 500 foes
Kill 7 500 foes
Kill 20 000 foes
Kill 50 000 foes
Kill 100 000 foes
Collect 100 orbs
Collect 500 orbs
Sell objects worth 25 000 gold
Sell objects worth 100 000 gold
Kill 666 skeletons
Identify 15 items
Use 150 potions
Get killed 100 times