Tairona Necklace from Colombia, ca. 1000 - 1500 AD. A fine Tairona necklace from Colombia, ca. 1000 - 1500 AD. It is 26 long and is comprised of very large carnelian and agate beads, the largest of which is 3-3/4 long. Beautiful colors. Ex New World Artifacts Gallery. Value range: $400 - $600.