i kinda figure the cap for orichalcum rings is higher then 95.
when u go the the npc in the guild who shows the recipes for ranks , as you progress .....
for every 1.0 you progress, new recipes show up , and from the current alla printouts , they seem to appear, once you cannot gain from them anymore.
this happened to me with the platinum gemmed rings , and for the last 3.0 in items in the list.
im just assuming the cap is at least 96.0 or higher , but once i hit 96.0 , i will repost , and let everyone know if it pops up in the recipe list.