Emeralds, by their very nature, usually comprise fissures and floor reaching cracks. To enhance their look and stability, a typical follow includes the introduction of oil or different substances into these imperfections. This course of enhances the gem’s readability and total visible enchantment by lowering the visibility of those inclusions. Cedarwood oil, as a consequence of its refractive index being near that of emerald, is ceaselessly used. The appliance includes immersing the emerald within the oil below strain or vacuum, permitting the oil to penetrate the fractures.
This enhancement is important as a result of it permits extra emeralds to be commercially viable. Untreated emeralds of gem high quality are uncommon and command significantly greater costs. The follow additionally helps to guard the stone from additional harm, because the oil acts as a buffer, stopping the propagation of present cracks. Traditionally, numerous substances have been used for this goal, relationship again centuries. Trendy methods have refined the method, utilizing extra steady and long-lasting oils.
