I'm going to be working on this. It evidently makes use of an Imbued Star Rose Quartz. Clerics who worship Erollisi Marr can buy the spell to imbue the Star Rose Quartz at level 34. The rest of the components I'm guessing would be smithy hammer, leather padding, bracer mold, 2 folded sheets of metal (not sure what quality...probably medium) and a flask of water. I don't think you will need a particular forge, however that is not for certain. Not sure what your smithing skill will have to be, but normally Fine Steel Plate Bracers trivial at around 208. Any further info anyone has would be most helpful.
Embue Rose quartz is a lvl 29 spell, ero marr worshippers only. This is cultural armor, so it takes High quality folded sheets, MOB drop only for the ore. Also, its the plate bracer mold, and you have to use the FREEPORT human cultural forge. Recipe is otherwise ok, except you also need chain jointing. Made from metal rings. Also don't use water, use sea temper. Made from 2 sea foam, saltwater seaweed and fish wine. Trivial may be higher than fine steel plate. See Eqtraders.com for full recipes.