Yellow sapphires which are Increased by means of low-level radiation lose their coloration over time and fade absent as a consequence of warmth and publicity. Sri Lanka has captivated the Yellow Sapphires for hundreds of years. Artisans craft this gemstone’s jewellery in cameos and intaglios of character, folklore, and faith. https://www.apsense.com/article/810029-some-historical-facts-about-sri-lankan-yellow-sapp.html