Yellow Sapphire from Ceylon are regarded as best astrological Pukhraj and are generally devoid of any sort of cure and heating. By subtracting different quantities of the h•-Fe3+ absorption spectrum from the spectrum in the second measurement place, we are able to decide that its focus is around 6 ppma, https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share