Tairona Necklace from Colombia, ca. 1000 - 1500 AD. A beautiful Tairona Necklace from Colombia, ca. 1000 - 1500 AD. It is 25 long and is made from translucent carnelian beads, with a speckled green crisocola bead at the center. All are highly polished. Ex New World Artifacts Gallery. Value range: $400 - $600.