Gold Armlet is a low to mid-ranked armor that provides 46 Defense, 4 Def%, 28 Magic Defense, and two linked Materia slots with normal growth. Cid joins with one already equipped. It can be bought for 2,000 gil at Rocket Town, stolen from Dragon, or obtained from the house near Gongaga by taking the small chest in exchange for Mythril.
Gold Armlet is an accessory that provides MP +60% and prevents Silence. When three are used in Materia Fusion, it gives MP +10%. It can be obtained by completing missions 4-2-2, 7-5-2, as treasure in mission 2-5-2, 6-5-2, 8-5-3, stolen from Kactuer, or dropped by Mover RE, or G Caina.
Gold Bracer is an accessory that provides Max MP +60%, and when one is consumed it increases a creature's Max MP. It can be bought for 2,000 gil at Mi'ihen Highroad (chapters 3/5), Calm Lands (chapters 3/5), Zanarkand Dome (chapters 1/2), or from Open Air Inc. for 2,500 credits. It can be found at Macalania Woods (chapter 3), as a random prize from blitzball, completing the Standard Cup: Hard, or dispatching a level 3 chocobo to Mi'ihen Highroad.
Gold Armlet returns as a level 30 gauntlet that provides +23 Defense, +29 Bravery, and is 1/3rd of the "Glorious Gold" set. It can be obtained from the shop by trading 23,750 gil, Gauntlets, Gold, and Hero's Desire x3.