Yellow Sapphire stands nine over the hardness scale holding the third placement following Diamond and Moissanite. In the event the gemstone is multiple carat then it may't have smooth edges. Ans.As white pukhraj stones are a particular variety of yellow sapphires, they may be priced differently. It's important to notice https://www.apsense.com/article/810029-some-historical-facts-about-sri-lankan-yellow-sapp.html