In 1996, after Jonathan Birnbach spent 15 years managing his family’s business, he decided to branch out and form his own company. He has spent the past 20 years building a world renowned brand.

Today, J. Birnbach is known as one of New York’s premier diamond cutters, specializing in the finest makes and qualities. With an extensive inventory of GIA certified diamonds ranging in all shapes and sizes, as well as our collection of one-of-a-kind handmade jewelry, we are able to meet and exceed all of our customers’ needs and expectations.

From the Oscars to the Emmys to the Met Gala, our fabulous jewels have been displayed on red carpets around the world. With our commitment to excellence and willingness to go above and beyond, we at J. Birnbach have no doubt we can help make your dreams come true.

Diamond rings

Virginia von Nessi

Director of Production and Operations

Virginia von Nessi joined our team in 2018. She received her Bachelor of Fine Arts in Metals / Jewelry / CAD-CAM From Tyler School of Art, Temple University in 2014 with a minor in Art History. With an immersive background in fine art, bench fabrication, 3D modeling, and jewelry design, Virginia brings to life jewelry creations for some of the world’s most exquisite diamonds while overseeing day to day operations of the company.