Ask The 'Diamond Guy®' - Fred Cuellar Ask The Diamond Guy®
Every day Fred Cuellar answers questions about diamonds. Why? Because he’s one of the world's most renowned experts on the subject of diamonds. So you can ask a question here if you cannot find it in the database. Questions are not answered immediately. It may take some time for your question to be answered. When it is answered, you will receive an email notifying you and a link to the answer.

Heating Diamonds

Topic: The Diamond

Q

My sister told me some jewelers heat up diamonds to make them appear better than they actually are… and that this process makes a diamond more brittle. Are either of these pieces of information true?

A

Hi Heather,

Pat your sister on the back! They are both true!

-Fred