780705 Necklace, c.6th - 7th century (gold & emeralds) by Byzantine; length: 36.8 cm; Private Collection; (add.info.: Composed of 13 cell-work links, each link a triangle formed from 10 circular cells, each set with an emerald, a piriform element below joined to a wire threaded through an emerald bead); Photo 穢 Christie\'s Images; out of copyright.