If a gemstone like a sapphire, is exposed to a jewelers torch or soft flame for less than 10 seconds for repair work on a prong.
And said sapphire is unheated and unenhanced. - Would it negate the unenhanced and unheated status of said stone even though the stone wasn't damaged, changed colors or cracked nor any changes in dissolving the inclusions?
Would it dissolve the crystalline structure or change the crystalline structure?
Would AGL, GIA or any reputable lab be able to pin point the heat on the stone and conclude possibility of heat treatment even if it's low heat?
And said sapphire is unheated and unenhanced. - Would it negate the unenhanced and unheated status of said stone even though the stone wasn't damaged, changed colors or cracked nor any changes in dissolving the inclusions?
Would it dissolve the crystalline structure or change the crystalline structure?
Would AGL, GIA or any reputable lab be able to pin point the heat on the stone and conclude possibility of heat treatment even if it's low heat?