Natural star sapphires in blue, grey and black, cut as cabochons, as loose stones and set in gold and silver jewellery. Star sapphire is corundum cut as a cabochon to show a six-rayed star, called asterism, from fine rutile needles inside.
Natural star sapphires in blue, grey and black, cut as cabochons, as loose stones and set in gold and silver jewellery. Star sapphire is corundum cut as a cabochon to show a six-rayed star, called asterism, from fine rutile needles inside.