When was the first ever diamond ring made?

A human picked up a raw gem-quality diamond and admired it probably 6,000 years ago.

Over time, raw diamonds of gem-stone quality were mounted in metal initially for royalty, because only royalty could afford such adornments. Although there were probably diamond rings crafted before this period, you can view a natural diamond set in Midieval times -- about the 15th century, below.