Blue Sapphire Rings vintage

http://jeffreyfzlb759.edublogs.org/2019/09/06/dont-make-this-silly-mistake-with-your-types-diamond/

The heat that generates the diamond can even exceed 1,200 degrees Celsius. Nearly anything a lot less than four hundred levels Celsius brings about graphite, not diamond. Look at warmth. It corresponds to the heat,