|
Press Release: The Panjikar Gem Research & Tech Institute in Pune organized a free seminar on how to easily identify treated yellow sapphires as part of the group's ongoing outreach to former students and trade members. The students have formed a new organization called “PANGEMS.” Dr. Jayshree Panjikar welcomed them to the event and took them through a PowerPoint presentation on yellow sapphires. In the recent years, the colored-stone market has been flooded with treated material, especially treated yellow sapphires. Natural yellow sapphire, which is generally sold in the local market as “Pukhraj,” has become a common stone to be recommended by astrologers. Added to the fact that deep yellow shades of untreated material command a high value has led to the advent of a wide range of treatments for yellow sapphires to improve their color and clarity. Several treatments are done, such as heat treatment, irradiation, flux-treatment, glass-filling, beryllium diffusion treatment and low-temperature prolonged treatments, which gave rise to very attractive shades of yellow. Today, synthetic yellow sapphires are treated to imitate the inclusions seen in treated-natural gemstones. Although sophisticated instruments can detect all the treatments the seminar was arranged for the gemstone dealers and new entrepreneurs who have limited access to high-tech instruments. Emphasis was placed upon how to identify the natural, treated, synthetic and the synthetic treated yellow sapphires with a mere 10x lens. Participants also had the pleasure of seeing some rare gems such as nuumite, lodolite, larimar, rainbow obsidian and many other unusual stones.
Rapaport News is not responsible for, and does not endorse, the content of any press release. Press releases are not written by us and are provided only as additional information for our clients.
|