Game Design Increase Bracelet and Necklace durability for Jeweling

The concept is quite simple, bracelets and Necklaces cost 1.5 and 2x more ingredients than rings, which makes crafting high-durability versions of them a lot more time consuming.

From level 90+ you need 6, 12 and 18 gems respectively to craft a ring, bracelet or necklace. If you were to use tier 2 oil and tier 1 gems, the rings would have more durability than the bracelets, which in turn will have more durability than the necklace. This doesn't make much sense, since grinding the materials for the bracelets and necklaces is more time consuming than for the rings.