Yellow Sapphire from Ceylon are regarded as ideal astrological Pukhraj and so are typically devoid of virtually any treatment method and heating. Certification: The presence of a credible gemological certification from a highly regarded and identified gem laboratory provides believability and assurance to the quality of yellow sapphire or another https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share