World of Al'Dravin
Gems are cherished to a degree difficult for non-gnomes to comprehend. Every gnome has a small gem he or she will carry at all times, often feeling or stroking it when thoughtful or troubled. Every gnomish village will have a few particularly splended stones that belong to the community as a whole, each with an accompanying legend, and enchanted gems are the favorite magical items of gnomish spellcasters.
The artisanship goes beyond mere rote skill. Gnomish jewelers are capable of very creative designs in jewelry and have developed the most elegant royal crowns, sceptres, and decorative sculptures known to deimihuman-kind.
Salt is a necessity to the gnomish diet, and if there is no natural source available gnomish traders will go to greath lengths to acquire it.