In the World of Warcraft online game, all Draenei have an effective Jewelcrafting skill 5 points above their actual training.
The sole benefit to this ability is marginally early learning of patterns as you level. Creatures that are summoned by JC-produced trinkets do not scale with the skill of the user.
In Warcraft RPGThis section concerns content exclusive to the Warcraft RPG, and thus unlikely to be canon.
Gemcutting is a suggested learnable craft in the RPG.