Loose Diamonds

Are you in Orange County or in Southern California and looking for certified loose diamonds? Simone & Son has been a trusted source for diamonds and custom jewelry since 1978. We specialize in the finest cut diamonds with G.I.A. & A.G.S. diamond grading reports.

We recommend shopping our gallery of handpicked diamonds with actual photomigrographs so you can actually see the diamond as if you are viewing it under a microscope. If you don’t see the diamond that you are looking for you can search our vast diamond data base direct from our cutters. If a diamond catches your eye and you would like to take a closer look at it contact us to set up a time and date to view the diamond in person right here in our store.

Simone & Son’s top priority is customer service and transparency with every diamond purchase. Our Gemologists are certified by G.I.A. and A.G.S. and are here to find you the best diamond for the best value.

You might notice that nearly all of our diamonds are certified by G.I.A. and A.G.S. diamond grading laboratories to ensure you reliability and accurate grading.


The Hand Selected Diamond Collection Enter here to view hand selected diamonds by Simone & Son Gemologists View hand selected diamonds	Direct from the Cutters Simone & Son has some of the best diamond connections in the world. Shop our diamond cutters inventory.	Looking for a particular diamond? Let us do the shopping for you. Tell us what you want and we will do our best to find the ideal diamond fo you Diamond Request Form