How long has it taken you guys to find it? I have like 400h across all characters and finally encountered it! 120h on this character though



I'm wearing ring of sunfire which I find mux more useful right now, 25 reflect ( I stand to be corrected here ) 
The ring of vitality is good to keep when entering vampire lairs, though I tend to agree, and it gets dumped in a drawer usually or sold.
Usually at level 25 and up, you will find amazing loot, amazing that is, in terms of rings, necklaces n' stuff like this, in caves that have only what is known as "mythic" creatures, aka animals.