As with all enchantments, health enchants give more hp than mag or stam enchants, but on Jewelry of the same level, the hp boosting or mag/stam boosting pieces all give the same value. I am pretty sure they should change this to be on par with any other enchantment, as it currently ruins picking a jewelry piece with health, b/c 65 mag > 65 hp. The jewelry should give the same % more hp as the enchants do, to stay balanced.