Diamond Shield Diamond Shield , also known as Opal , DiamndShield , and Diamond , is a recurring shield in the series . It is often a high - ranked shield that sometimes provides resistance towards Lightning - elemental attacks . Appearances . " Final Fantasy " . Diamond Shield is a high - ranked shield that provides 16 Defense and resistance to Lightning - elemental attacks . It can be found at Sunken Shrine and Flying Fortress , and can only be equipped by the Knight . " Final Fantasy II " . Diamond Shield is a high - ranked shield that provides 14 % Evasion , - 70 Int / Spr , and resistance towards Lightning - elemental attacks . It can be found in Leviathan or dropped from Adamantoise , Black Knight , and Catoblepas . " Final Fantasy III " . Diamond Shield is a high - ranked shield that can be bought for 18 , 000 at Ancient Ruins and " Invincible " or found at Temple of Time and Sunken Cave . In the NES version , 13 Defense , 15 Magic Defense , 14 % Evade , and resistance towards Lightning - elemental attacks . In the 3D versions , it provides 14 Defense , 10 Magic Defense , and immunity to Toad and Confusion . " Final Fantasy IV " . Diamond Shield is a high - ranked shield that provides 4 Defense , 2 Magic Defense , 32 Evasion , 3 Magic Evasion , and resists Lightning - elemental attacks . It can be bought for 15 , 000 at Tomra , and only Cecil , Kain , and Cid can equip it . In the 3D remakes , it also now prevents Paralysis and Confuse . " Final Fantasy IV - Interlude - " . Diamond Shield returns as the second strongest shield , providing the same bonuses as before . It can be bought for 15 , 000 from the dwarf on the " Falcon " , and only Cecil and Cid can equip it . " Final Fantasy V " . Diamond Shield is a high - ranked shield that provides 6 Defense , 35 Evasion , 5 Weight , and halves Lightning - elemental damage . It can be bought for 6 , 000 gil at Moore or found at Castle Exdeath . " Final Fantasy VI " . Diamond Shield is the second strongest heavy shield , providing 40 Defense , 27 Magic Defense , and 10 % Evasion . It can be bought for 3 , 500 gil at Nikeah , South Figaro , and Kohlingen , and can be equipped by Terra , Edgar , Cyan , Celes , and Setzer . " Final Fantasy X " . Diamond Shield is an armor for Tidus , obtained when the dominant abilities on any shield are all four Defense + % abilities . " Final Fantasy XII " . Diamond Shield is a mid - ranked shield that requires the Shields 4 license to equip , and provides 18 Evasion . It can be bought for 3900 gil at Rabanastre and Nalbina Fortress , found at Phon Coast ( The Hakawea Shore ) , dropped from Ichthon at the Dalmasca Estersand ( 3 % chance ) , or by completing the Atomos Hunt . In the International version , it now can be bought for 3 , 900 gil at Mt Bur - Omisace , found at Barheim Passage ( Special Op Sector 5 ) or Paramina Rift ( Icebound Flow ) , or dropped from Ichthon at the Dalmasca Estersand ( 3 % chance ) . " Final Fantasy XIV " . Diamond Shield is an item level 115 shield equippable by Gladiator and Paladin . It has a block strength of 123 and a block rate of 325 . It provides 13 Strength , 15 Vitality , 13 Parry , 9 Critical Hit Rate and 5 Ice Resistance . " Final Fantasy Tactics " . Diamond Shield is a mid to high - ranked shield that provides 34 % Physical Evasion and 15 % Magic Evasion . It can be bought for 12 , 000 gil at an Outfitter after Orbonne Monastery in Chapter 3 or found as rare treasure at Finnath Creek . " Final Fantasy Crystal Chronicles " . Diamond Shield is the second strongest shield for the Clavat , providing 22 Defense . " Final Fantasy Adventure " . The armor is called Opal and it has an shield icon before its name . It is bought in the Weapon shop to the east of Mt . Rocks for 3 , 900 GP , which blocks Dagger , Harpoon , Spear , Mimic Box , Pincer , Blizzard , Sword , Rapier , Voice , Needle , Poison String , Talon , Axe , Ribinguumu , Thunderbolt , and Scorpion Tail . " Final Fantasy Legend III " . Diamond can be bought in Darius and Knaya in Pureland for 8500 GP . It provides 7 defense , 10 magic defense , and grants resistance to Thunder . " Final Fantasy Dimensions " . Diamond Shield is a mid - ranked shield that provides 9 Defense and 30 Evade . " Dissidia Final Fantasy " . Diamond Shield is a level 50 shield that provides + 36 Defense and is 1 / 3rd of the " Dazzling Diamond " set . It can be obtained from the shop by trading 15 , 460 gil , Heavy Shield , and Diamond x2 . " Dissidia 012 Final Fantasy " . Diamond Shield returns as a level 60 shield that provides + 43 Defense and is 1 / 3rd of the " Dazzling Diamond " set . It can be obtained from the shop by trading 75 , 220 gil , Force Shield , Diamond x2 , and Vision ' s Dream x3 .