Here is the full list of all 24 Jewel Match Twilight 2 achievements.
Make 8 combos in a row of match 4 or more
Make 6 combos in a row of match 4 or more
Make 4 combos in a row of match 4 or more
Have 10000 gold in the bank
Buy the strongest hammer
Complete 3 bonus games
Have 30000 in the bank
Buy 5 items in the shop
Complete 10 bonus games
Gather 50 stars by playing bonus levels
Gather 30 stars by playing bonus levels
Solve the first 90 levels with a ‘Perfect’
Gather 2000 gems in Crystal levels
Gather 4000 gems in Crystal levels
Gather 50000 pieces
Gather 100000 pieces
Solve level 90 in less than 5 minutes
Make 50 matches in 55 seconds
Make 10 matches in 10 seconds
Make 20 matches in 22 seconds
Buy all decorative items of a castle
Replay a level
Check out the wallpaper screen
Buy the bigger chest