Diamond Helm Diamond Helm , also known as Diamond , is a recurring helmet in the series . It is often a mid - ranked helmet that provides decent defense , as well as sometimes resistance to Lightning - elemental attacks . Appearances . " Final Fantasy " . Diamond Helm is a mid - ranked helmet that provides 8 Defense , - 3 Evade , and 3 Weight . It can be found in the Sunken Shrine and can only be equipped by the Knight class . " Final Fantasy II " . Diamond Helm is the second strongest helm , providing 17 Defense , - 18 % Evade , 5 % Magic Defense , - 34 Int / Spr , and resistance to Lightning - elemental attacks . It can be found in Cyclone or dropped from General , Green Dragon , and Chaos Rider . " Final Fantasy III " . Diamond Helm is a high - ranked helmet that can be bought for 20 , 000 gil at Ancient Ruins and " Invincible " or found at Sunken Cave and Temple of Time . In the NES version , it provides 8 Defense , 9 Magic Defense , 12 % Evade , and resistance to Lightning - elemental attacks . In the 3D versions , it provides 21 Defense , 10 Magic Defense , and immunity to Confusion and Toad . " Final Fantasy IV " . Diamond Helm is a high - ranked helmet that provides 9 Defense , 2 Magic Defense , - 10 Evade , 2 Magic Evade , and resistance to Lightning - elemental attacks . It can be bought for 10 , 000 gil at Tomra , and can be equipped by Cecil , Kain , and Cid . In the 3D remakes , it no longer has the Evasion penalty . " Final Fantasy IV - Interlude - " . Diamond Helm returns , providing the same stats as before . It can be bought for 10 , 000 gil from the dwarf on the " Falcon " . " Final Fantasy V " . Diamond Helm is a mid - ranked helmet that provides 10 Defense , 2 Magic Defense , 4 Weight , and halves Lightning - elemental damage . It can be bought for 7 , 000 gil at Moore , dropped from Ironclad , or stolen from Bio Soldier . " Final Fantasy VI " . Diamond Helm is a mid to high - ranked helmet that provides 27 Defense and 18 Magic Defense . It can be bought for 8 , 000 gil at Nikeah , South Figaro , and Kohlingen , stolen from Dante , or from betting the Crystal Helm in Dragon ' s Neck Coliseum . It can be equipped by Terra , Edgar , Cyan , Celes , and Setzer . " Final Fantasy IX " . Diamond Helm is a mid to high - ranked helmet that provides 20 Defense , Spirit + 1 , and teaches the abilities Accuracy + and Insomniac . It can be bought for 3 , 000 gil at Daguerreo ( disc 3 ) or at Ipsen ' s Castle , and can be equipped only by Steiner and Freya . " Final Fantasy XII " . Diamond Helm is a mid to high - ranked helmet that provides 25 Magic Evade , + 7 Strength , and + 3 Vitality . It requires the Heavy Armor 6 license to equip , and can be bought for 7 , 000 gil at Mosphoran Highwaste , Phon Coast , and Archades , or dropped from Grave Lord ( 3 % chance ) . In the International version , it now provides 29 Magic Evade and can now be bought for 7 , 000 gil at Mosphoran Highwaste and Phon Coast , dropped from Grave Lord ( 3 % chance ) , or found at Dalmasca Estersand ( Broken Sands ) and Tchita Uplands ( Sundered Earth ) . " Final Fantasy Tactics " . Diamond Helm is a mid - ranked helmet that provides + 80 HP . It can be bought for 6 , 000 gil at an Outfitter after Royal City of Lesalia in Chapter 3 . " Final Fantasy Tactics Advance " . Diamond Helm is a mid - ranked helmet that provides 11 Defense and 5 Magic Resistance . " " . is a high - ranked helmet that provides 11 Defense and 4 Resistance . It can be obtained from the Bazaar from the " Gift of Stone D " set . " Final Fantasy Crystal Chronicles " . Diamond Helm is the strongest helmet for the Yuke , providing 22 Defense . " Final Fantasy Legend III " . Diamond can be bought in Darius and Knaya in Pureland for 8500 GP . It provides 9 defense , 10 magic defense , and grants resistance to Thunder . " Final Fantasy Dimensions " . Diamond Helm is a mid - ranked helmet that provides 12 Defense and 4 Magic Defense . " Dissidia Final Fantasy " . Diamond Helm is a level 50 helmet that provides + 137 Bravery , + 1 Defense , and is 1 / 3rd of the " Dazzling Diamond " set . It can be obtained from the shop by trading 8 , 000 gil , Heavy Helm , and Diamond . " Dissidia 012 Final Fantasy " . Diamond Helm returns as a level 60 helmet that provides + 201 Bravery , + 1 Defense , and is 1 / 3rd of the " Dazzling Diamond " set . It can be obtained from the shop by trading 35 , 240 gil , Sallet , Diamond , and Youth ' s Dream x3 .