RENAISSANCE OCTAHEDRAL DIAMOND RING. Western European, mid- to late 16th century. Gold, enamel and diamond.
ROMAN OCTAHEDRAL DIAMOND RING. Roman Empire, second half of the 3rd century to early 4th century AD.Gold and diamond. The high bezel of this ring is set with a natural octahedral diamond crystal weighing about 1.65 carats.
CLERCQ ROMAN OCTAHEDRAL DIAMOND RING Roman Empire, second half of the 3rd century to early 4th century AD Gold and rough diamond, from the Benjamin Zucker Family Collection. The 2nd largest known surviving rough #Roman #diamond ring!