The Ultimate Cheat Sheet on Blue Sapphire Rings vintage
http://spencermbvx311.edublogs.org/2019/09/10/why-its-easier-to-succeed-with-kind-of-diamond-than-you-might-think/
The warmth that results in the diamond may even exceed 1,200 degrees Celsius. Just about anything below 400 levels Celsius leads to graphite, not diamond. Speak about heat. It corresponds to the heat, the enthusiasm