It is crucial to authenticate and validate the requirements on the gemstone you are looking to invest in. In the situation of Ceylon Yellow Sapphires, be careful about selecting irradiated gemstones only. Beautiful piece of jewellery- nicely made. Not also flashy for daytime wear but wonderful for night in addition. https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share