Yellow Sapphire stands nine about the hardness scale holding the 3rd situation just after Diamond and Moissanite. In the event the gemstone is multiple carat then it could't have sleek edges. The detail to take into account relating to this availability is if the stones have already been dealt with. https://www.apsense.com/article/810029-some-historical-facts-about-sri-lankan-yellow-sapp.html