Lot 23. A Roman amethyst bead necklace, circa 1st Century B.C.-1st Century A.D. Necklace 76cm long, largest bead 2cm wide. Sold for €5,120. Photo: Bonhams.

Composed of 71 biconical beads, graduating in size, restrung and interspersed with modern gold spacer beads. 

Provenance: Adolphe Stoclet Collection, acquired in the early 20th century.