LAB GROWN DIAMOND
ENGAGEMENT RINGS
Celebrate love with brilliance and purpose. Our collection of lab grown diamond engagement rings offers the same sparkle and strength as mined diamonds, giving you a beautiful and responsible choice for your forever moment.
BRILLIANT, ETHICAL, AND YOURS
OUR DIAMONDS ARE FOREVER
SAME BEAUTY, NEW ORIGINS
Oval Cut Engagement Rings
Marquise Cut Engagement Rings
Pear Shape Engagement Rings
Radiant Cut Engagement Rings
FROM CLASSIC TO CONTEMPORARY
FIND YOUR
PERFECT RING
Since 1910, H.L. Gross & Bro. Jewelers has been the trusted source for diamond engagement rings in Long Island. With unmatched selection, personalized service, and a legacy five generations strong, we help couples find the one ring that defines forever.
H.L. GROSS & BRO. JEWELERS
840 Franklin Ave. Garden City, NY | 516.747.6666
MORE CARAT, MORE SPARKLE
EXCEPTIONAL VALUE
WITHOUT COMPROMISE
Created using advanced technology to replicate natural conditions, our lab grown diamond engagement rings feature the same physical and optical properties as mined diamonds—perfect for those who want authenticity with a modern twist.
TIMELESS DIAMOND ENGAGEMENT RINGS AWAIT
A LEGACY OF FIVE GENERATIONS
Founded in 1910 on a Brooklyn sidewalk, H.L. Gross & Bro. Jewelers has grown from a humble family-run shop into a trusted name in fine jewelry. Across five generations, we’ve expanded through New York, becoming known for exceptional diamonds, innovative service, and lasting customer relationships—all rooted in quality, value, and care.
Today, our newly expanded 7,000 sq. ft. Garden City showroom reflects over a century of tradition and trust. Whether you’re shopping for an engagement ring or a timeless piece, we’re here to make the moment unforgettable. Join generations of loyal customers who’ve made H.L. Gross & Bro. part of their story.
VISIT OUR GARDEN CITY SHOWROOM
EXPERIENCE THE
SPARKLE IN PERSON
Our 7,000 sq. ft. showroom in Garden City offers an exclusive look at the finest natural & lab grown diamond engagement rings. Let our expert team guide you through timeless styles and help you find the perfect piece for your forever moment.
H.L. GROSS & BRO. JEWELERS
840 Franklin Ave. Garden City, NY | 516.747.6666
A NEW GENERATION OF FOREVER
DESIGNED FOR MODERN
LOVE STORIES
Modern couples are choosing lab grown diamond engagement rings for their blend of tradition, innovation, and meaning—making a bold statement about love, responsibility, and individuality.
CONFIDENCE IN EVERY CARAT
WHY CHOOSE US
Best Pricing On Lab Grown Diamonds
Lifetime Engagement Ring Guarantee
Diamond Trade-Up Policy
Interest Free Financing
GOOGLE REVIEWS
HEAR WHAT THEY HAVE TO SAY
Ten years ago, we got our wedding rings and upgraded my wife’s engagement ring. We were treated with such care and respect. We returned later for her anniversary band, which came out perfect. I even got a custom pinky ring I love. Krysi made the whole experience smooth and enjoyable.
Arthur Robert Saks
Google review | 3 weeks ago
Krysi and Ed at H. L. Gross were incredibly kind, professional, and quick—my engagement ring was resized the same day I called, in just 30 minutes, for much less than other places quoted. They even let us watch the process and helped us explore wedding bands without any pressure.
Alexandra Grabowski
Google review | 4 months ago
Mimi helped me pick out the most beautiful ring, very professional & polite. The whole experience was 5/5. Will 100% be coming back to get more jewelry! She made the process fun, easy, and completely stress-free. I couldn’t have asked for better service or a more perfect ring.
Joey Carmine
Google review | 2 months ago
THE SAME SPARKLE, NEW STORY
PERFECTLY CRAFTED
LAB GROWN DIAMONDS
From timeless solitaires to glamorous halos, our collection of lab grown diamond engagement rings is designed to match every style, personality, and love story.
FIND THE PERFECT LAB GROWN
DIAMOND ENGAGEMENT RING
ENDLESS STYLES TO EXPLORE
CHOOSE A DATE AND TIME THAT WORKS FOR YOU
SCHEDULE YOUR CONSULTATION WITH EASE
OUR LONG ISLAND
SHOWROOM
CONTACT US
516.747.6666
ADDRESS
840 Franklin Ave. Garden City, NY
STORE HOURS
Tues - Fri 10AM - 5PM
Tues & Thurs till 7:30PM
Sat 10AM - 5:30PM
© 2025 — Copyright
LAB GROWN DIAMOND ENGAGEMENT RINGS
Celebrate love with brilliance and purpose. Our collection of lab grown diamond engagement rings offers the same sparkle and strength as mined diamonds, giving you a beautiful and responsible choice for your forever moment.
BRILLIANT, ETHICAL, AND YOURS
FIND YOUR
PERFECT RING
A NEW GENERATION OF FOREVER
DESIGNED FOR MODERN
LOVE STORIES
Modern couples are choosing lab grown diamond engagement rings for their blend of tradition, innovation, and meaning—making a bold statement about love, responsibility, and individuality.
FIND THE PERFECT LAB GROWN DIAMOND ENGAGEMENT RING
OUR LONG ISLAND SHOWROOM
