|Required for||Units: None|
- Base yield:
Gems are a relatively rare luxury resource, found on hills in diverse terrains. Accessed with Mines, Gems provide a good Production bonus, but their main benefit is the fact that they provide the highest bonus of all the luxuries: +3 Gold! Gems also receive +2 Faith with the Tears of the Gods belief.
A gem is a beautiful but rare mineral. Once cut and polished, gems possess vibrant colors and/or are extremely shiny. There are two major classifications of gems: precious, like diamonds, rubies and emeralds, and semi-precious, such as amethyst, turquoise, and so forth. Gems have been highly prized throughout history; they are commonly used to adorn jewelry and the household items of the rich and powerful.
In the modern era gems also became prized for practical applications. The oscillation of quartz under an electric current is used to produce inexpensive timepieces of precision impossible in the ancient world, while diamond dust is used to produce long lasting cutting tools. The first working laser was built around a rod of pure ruby.