The #1 Source for Designer Engagement Rings – for over 100 years!

We are a 5th generation, family owned couture jewelry business established in the year 1910. Located in downtown Garden City, Long Island, there are currently 3 generations working together at H.L. Gross & Bro.

Having sold over 35,000 engagement rings, we are extremely experienced with every facet of the diamond business. We have 50 year old relationships with the largest diamond suppliers, many of which are De Beers site-holders. This means we are purchasing the diamonds from the source, eliminating the middleman, and passing the savings on to you. We guarantee the lowest diamond prices

Bridal Designers
We are authorized dealers of the top bridal designers, including Tacori, Scott Kay, Vatche, Verragio, Henri Daussi, Precision Set, Martin Flyer, Furrer Jacot, Simon G, Stardust, Jeff Cooper, A. Jaffe, Sylvie, SES, ArtCarved and PeJay.

Our Reputation
We are members of the prestigious AGS (American Gem Society) and as such must adhere to their strict guidelines of business practices and professionalism. We are also members of the Jewelers Vigilance Committee, The Retail Jewelers of America, The New York State Jewelers Association and the Better Business Bureau.

Our reputation is our most precious commodity and we go to great lengths to see that every piece we sell is the best it can be. We stand behind our products to provide the ultimate in customer satisfaction and have many families that keep returning to us generation after generation. We look forward to the opportunity to serve you!