The Jewels That Aren’t in the Skull
Gems serve an important role in games that emphasize treasure acquisition and encumbrance- their generally smaller and lighter than their value in gold. They fall a bit flat for me mechanically though, only really being used as an occasional spell reagent. To give them a more fun application here’s a way to use gems as item upgrades like in Diablo or WoW.
The gnomes of The Bronze City of Peake have mastered the art of jewelcraft. Adventurers from all corners of the world seek them out to enchant their blades, rings and shields with the power of precious stones.
The gnomes are skilled crafts folk, able to do detailed work with their nimble fingers and sharp eyes, but more impressive than that is their ability to shape the gems into impossible designs. Elegant shapes and patterns wrought from ruby and emerald surpass even the work of the dwarves, who would be the first to point out that the gnomes are more just taking advantage of their elemental heritage, coaxing the stones into these shapes in their own language, the language of stone.
You can enchant any item that could accommodate a gemstone (DM fiat) other than that the rules of magic items apply in accordance to your preferred gaming system (I’m using 5e)
The gnomes do not work for free however. Their prices and effects are listed here:
Enchanting a weapon with a ruby gives the weapon an extra 1d6 (200g) 1d8 (500g) or 1d10 (1000g) bonus to damage.
Enchanting the weapon with an emerald grants an extra +1 (200g) +2 (500g) or +3 (1000g) to hit.
Enchanting the item with a sapphire increases the AC of the character by an extra +1 (200g) +2 (500g) or +3 (1000g).
A diamond may be used to enchant the item with the power of a spell that can be used once a day. Cantrip 500g, All spells higher than cantrip cost 1000xspell level gold.
Customers must supply gemstones or pay market price in shop.