Can Diamonds Melt or Burn? | Diamond Guide

Diamonds are the hardest substance known to man. When you purchase a diamond, you know that it won’t break very easily. Be that as it may, what about fire? Can diamonds melt or burn?

Yes, diamonds can melt under certain circumstances. However, burning one isn’t as simple as it sounds; You definitely can’t unintentionally set your diamond ring ablaze with a cigarette lighter. Burning a diamond requires fluid oxygen and an exceptionally hot torch.

Can a Diamond Withstand Heat?

Yes, they definitely can! As you probably already know, diamonds aren’t just used as gemstones for decorative purposes, but also as a tool in manufacturing various things. That alone should answer your question; if a diamond can be used in industrial manufacturing, you can be sure that it can withstand some heat. That’s not to say that all diamonds are equal of course, their durability may vary depending on their quality and other external factors. However, diamonds don’t blast into the fire under ordinary conditions so there’s no need to worry about it.

At What Temperature Do Diamonds Melt?

If you heat the diamond in the open air, it will begin to melt and burn at around 700 degrees Celsius (1,292 degrees Fahrenheit). Burning a diamond without oxygen, however, will make it change into graphite (a crystalline form of carbon) before transforming into a fluid.