Procedure: The stones which have not been handled ordinarily have more worth than stones with enhancement. The naturally occurring mineral corundum is the base mineral for yellow sapphire. When iron gets blended In this particular mineral in the course of the development phase, the result is usually a yellow sapphire. https://www.naturalpukhraj.com/blog/explore/factors-that-determine-the-price-of-a-yellow-sapphire