How much does the element ruthenium cost?

The value of ruthenium, like that of gold, can fluctuate significantly based on economic and political conditions, so it's probably best to do a web search using a phrase like "ruthenium commodities price" to get an up-to-date answer. However, as of March 2009, the price on the commodities market for ruthenium was around $80 US per troy ounce (to give you some idea of variable exotic metal values can be, a year prior to that it cost nearly four times as much).