Buyer’s Guide|Real or Synthetic Sapphire? How to Spot the Difference Without a Microscope
Introduction: The Allure and the Trap of Sapphires Sapphires, members of the corundum family with a hardness of 9 (second only to…
Introduction: The Allure and the Trap of Sapphires Sapphires, members of the corundum family with a hardness of 9 (second only to…