Ring set a cabochon agate eye on a pivot with a design representing Venus in front of the statue of Zeus. Mount decorated with a linear decoration in 18K yellow gold. Size: 7 2/4 Gross weight: 2.94 gr. Ancient or Antique agate “eye” bead ring. These agate “eye” beads are rare and were valued from ancient times, as a protective amulet against the “evil eye”. The use of mounting ancient Roman gems on gold settings to carry out jewels was typical of Italian goldsmithing from Renaissance up until the 19th century.