Precious stones in the context of "Incense route"

Commodity money is money whose value comes from a commodity of which it is made. Commodity money consists of objects having value or use in themselves (intrinsic value) as well as their value in buying goods.This is in contrast to representative money, which has no intrinsic value but represents something of value such as gold or silver, for which it can be exchanged, and fiat money, which derives its value from having been established as money by government regulation.

Examples of commodities that have been used as media of exchange include precious metals and stones, grain, animal parts (such as beaver pelts), tobacco, fuel, and others. Sometimes several types of commodity money were used together, with fixed relative values, in various commodity valuation or price system economies.

The incense trade route was an ancient network of major land and sea trading routes linking the Mediterranean world with eastern and southern sources of incense, spices and other luxury goods, stretching from Mediterranean ports across the Levant and Egypt through Northeast Africa and Arabia —through both the sea and the land along the Red Sea— to India and beyond. These routes collectively served as channels for the trading of goods such as Arabian frankincense and myrrh; Indian spices, precious stones, pearls, ebony, silk and fine textiles; and from the Horn of Africa, rare woods, feathers, animal skins, Somali frankincense, gold, and slaves. The incense land trade from South Arabia to the Mediterranean flourished between roughly the 3rd century BC and the 2nd century AD.