Here is the full list of all 20 Legends of Solitaire: Diamond Relic achievements.
Complete the Game
Complete 16 Levels
Complete 12 Levels
Achieve 100 Perfects
Use the Spell Book 40 times
Complete 8 Levels
Use the Diamond 40 times
Use the Wizard's Ring 40 times
Achieve 50 Perfects
Complete 4 Levels
Get a Combo of 20 Cards
Get a Combo of 15 Cards
Earn 30000 Cash
Achieve 25 Perfects
Earn 22000 Cash
Earn 15000 Cash
Achieve 10 Perfects
Get a Combo of 10 Cards
Earn 5000 Cash
Get a Combo of 5 Cards