I'd like to point out to you some information about the ring
Season [1]
Orcish Insignia Ring (Brown Ring) (30-40)
This ring is from roughly 7-8 years ago, which means there is a good possibility that of the 30-40 originally dropped that at least several have found permanent homes in museums, may have been lost due to banning and other misc incidents or are on closed accounts.
Based on that, the fact that it is an older item and wearable, I would consider starting your buy out price at a higher range. The prices you undoubtedly saw it sell at in older threads are from before the inflation of gold began to severely effect the prices of Rare items. Besides, at the very least if it does not sell at a higher rate you can always reduce it.