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.

Jewelry markings

Topic: Other

Q

I have a ring with a stone that looks like a diamond. Inside the ring is a jewelry markings that looks like an arrow and a number next to it. What is it? Does this mean the diamond looking stone is real?

A

Hi Eva,

Probably a manufacturer’s stamp. Visit a jeweler or independent appraiser with a thermal conductivity tester, and ask them to test it for free.

The Diamond Guy Helper