Yellow Sapphire from Ceylon are considered as ideal astrological Pukhraj and they are generally devoid of virtually any treatment method and heating. Certification: The presence of a credible gemological certification from a dependable and recognized gem laboratory adds believability and assurance to the quality of yellow sapphire or another gemstone. https://210list.com/story18626577/the-best-side-of-sri-lankan-yellow-sapphire