A knife with a blade made of a lustrous white alloy of mythril and platinum.
Platinum Dagger is a high-ranked dagger that provides 66 Attack, 5 Evade, 23 CT, 7% Combo Rate, and inflicts Immobilize on hit with a 10% chance. It requires the Daggers 5 license to equip, and can be bought for 11,500 gil at Archades, found at Henne Mines (Phase 2 Dig), dropped from Shambling Corpse (1% chance), or from doing the Great Cockatrice Escape sidequest.
In the International version, it now provides 83 Attack, 5 Evade, 21 CT, 12% Combo Rate, and inflicts Immobilize at a 10% chance. It still requires the Daggers 5 license to equip, but now can be bought for 13,700 gil at Balfonheim Port, stolen from Shambling Corpse (1% chance), doing the Great Cockatrice Escape sidequest, or found at Feywood (The Edge of Reason).
Platinum Dagger is a mid-ranked knife that provides 5 Attack and 10% Weapon Defense. It can be bought for 1,800 gil at an Outfitter after Zeirchele Falls in Chapter 2, or poached from Floating Eye and Malboro.
Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina, which is literally translated into "little silver".