GIA Diamond Informational Videos

The 4 C's

The History Of The 4 C's

How To Choose A Diamond

A Gorgeous Short Video

Shaping A Diamond

Diamonds by GIA

Katz Jewelry Company, New York, NY

We’re an established jewelry shop in New York City with a reputation for honesty, distinguished service and exquisite jewelry. Our prices make our pieces accessible to all.

Call to discuss your jewelry, diamond or gemstone needs: