I honestly do not have the information that you are requesting. I inherited a large lot of gemstones from a dear friend. She had a small jewelry business. I know that she purchased them from a website called www.thaigem.com . All the information I have on them is listed on the COA. They are not lab created but I am not sure about any treatments that may or may not have been applied. Sorry I do not have any more information. Thanks for looking at my auction. Fanned you back. :)