Great Falchion

Great Falchion: This heavy executioner’s sword has the same basic profile as a falchion, albeit with a much greater blade surface. Because it is an executioner’s weapon, it is often crafted as a masterwork weapon, marked with a royal seal, and created with one or more gems in the hilt.
Exotic Two-Handed Melee Weapon
Cost: 50 gp
Dmg (S) 1d6/1d6 Dmg (M) 1d8/1d8 Dmg (L) 1d10/1d10
Critical: x3
Range Increment:
Weight: 20 lb
Damage Type: Slashing

Source: Sandstorm