Yellow Sapphire stands nine within the hardness scale holding the 3rd posture after Diamond and Moissanite. In case the gemstone is more than one carat then it might't have sleek edges. Color: As being the purest Variation from the relatives of sapphires, these white gems are usually of the best https://www.apsense.com/article/810029-some-historical-facts-about-sri-lankan-yellow-sapp.html