Colour: By leaps and bounds, the color of a yellow sapphire stone is Probably the most quintessential characteristic in deciding its high quality. A par-outstanding quality yellow sapphire or Pukhraj stone should show a vivid, powerful, and eye-pleasing yellow shade. What is most unconventional is this first charge transfer band https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share