Gem A Live: Lead Glass Filled Rubies and Sapphires

GemA guest lecturer, Julia Griffith FGA DGA, tells us more about the most prevalent treatment of corundum: lead glass filling. This lecture goes into details on: What treatments are A brief history of glass filling Treatment method Treatment effect Identification CoLead glassfilled sapphires Testing Durability This webinar was created as part of a weekly series of webinars known as GemA Live. These webinars were created by GemA in association with