Yellow sapphires which might be Increased by way of low-level radiation shed their color after some time and fade away on account of warmth and exposure. Yellow sapphires regularly have much less inclusions than other colors, and they're held to higher clarity criteria than blue, pink, or padparadscha sapphires. Yellow https://www.apsense.com/article/810029-some-historical-facts-about-sri-lankan-yellow-sapp.html