Here is the full list of all 14 Artifact Quest 2 achievements.
Collect all parts of the amulet.
Complete all levels.
Get three stars on each level.
Collect 20 ancient coins.
Collect 30 gold bars.
Collect all parts of the ancient map.
Collect 35 pouches of coins.
Collect all parts of the shaman mask.
Collect 30 crystals.
Collect all parts of the hourglass.
Collect 10 pearls.
Collect all parts of the ancient scroll.
Collect all parts of the clay jug.
Collect all parts of the compass.