Grown Diamond Corporation USA
Rockaway Boulevard C/O MA3PL, Queens, NY 11434
Hours open
Monday:
9:15 AM - 6:30 PM
Tuesday:
9:15 AM - 6:30 PM
Wednesday:
9:15 AM - 6:30 PM
Thursday:
9:15 AM - 6:30 PM
Friday:
9:15 AM - 6:30 PM
Saturday:
Closed
Sunday:
Closed
Photos
Location & Phone number
About the Business

Welcome to Grown Diamond Corporation USA, your premier destination for exquisite lab-grown diamonds and fine jewelry. Nestled in the heart of Queens, New York, at Rockaway Boulevard C/O MA3PL, we redefine luxury with our stunning collection of diamonds that are as unique as you are.
At Grown Diamond Corporation, every facet of our diamonds is crafted with precision and purpose, ensuring that each piece is a true masterpiece. Our commitment to quality begins with the careful selection of flawless diamond seeds, which are then meticulously nurtured in our state-of-the-art diamond-growing greenhouses. Utilizing both High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD) technologies, we create diamonds that rival and often surpass their naturally mined counterparts.
Our exclusive CRBN platform offers a members-only experience, granting merchants, retailers, and jewelers direct access to the largest collection of lab-grown diamonds. Immerse yourself in our virtual experiences, explore high-quality images, and review comprehensive certificates before making your selections. With our Cutwise tool, you can examine every detail of our diamonds, from color and clarity to carat weight and cut pattern.
Discover a world of elegance with our curated collection of engagement rings, necklaces, earrings, bracelets, and more. Whether you choose a ready-made design or opt for a bespoke creation, our lab-grown diamonds promise unparalleled brilliance and affordability. We are proud members of the International Grown Diamond Association (IGDA), advocating for conflict-free, eco-friendly diamonds that are as kind to the planet as they are beautiful.
Lab-grown diamonds offer a sustainable and ethical choice, combining luxury with conscience. Each diamond is crafted in a controlled laboratory environment, free from the environmental and socio-political issues associated with traditional diamond mining. Our diamonds are certified by leading authorities such as GIA, IGI, AGS, and GCAL, ensuring transparency and authenticity.
Join us at Grown Diamond Corporation USA to experience the future of diamonds. Our seasoned experts are here to guide you through every step of your diamond journey, offering unparalleled service and expertise. Discover the brilliance of lab-grown diamonds and wear them with confidence and pride.
Visit us today and let us help you find the perfect diamond that reflects your unique style and values. Grown Diamond Corporation USA – where science meets artistry, and dreams become reality.
Reviews
"I can't speak highly enough about working with Grown Diamond Corp. I came to them with very specific and difficult to attain parameters for an engagement ring, and since the diamonds they had in stock weren't exact, they contacted their diamond cutters to have a stone created specifically for us. They worked with me every step of the way and made me feel secure that they could deliver the perfect diamond, which they did. The diamond itself absolutely blew me away. My rep Gulrez was so patient and helpful throughout the entire process, always communicating with me each step of the way. Because the stone had to be cut individually, it took slightly longer than I hoped, but it was well worth the wait. I had concerns about the money transfer but Gulrez helped me feel secure and when the diamond arrived it was absolutely worth it. I would recommend Grown Diamond Corp to anyone who is looking into a lab grown diamond, as their selection is far superior to any other lab grown diamond vendor."
"I had a great experience working with the Grown Diamond Corporation. I spent a long time searching for reputable lab created diamonds since so many out there are diamond simulants or hybrids and the Grown Diamond Corporation did not disappoint with their genuine lab grown diamonds. You can trust that when you are buying from GDC, you will receive a quality diamond. They have an excellent online database with a wide variety of loose diamonds available that you can then bring to a jeweler for setting. Zia reached out to me quickly after my initial request and was immediately able to find the perfect marquise diamond that I was looking for. This IGI certified diamond was absolutely stunning with excellent cut, clarity, and color. They reserved the diamond for me and it arrived overnight after shipment. Zia is a great contact to work with - he was responsive, helpful, and supportive throughout the process. Overall I highly recommend the Grown Diamond Corporation if you are in the market for a genuine lab created diamond."
"I cannot say enough great things about my experience with GDC. I was a little nervous about making such a large transaction online, but the QUALITY of lab grown diamonds other competitors have is nowhere near the level of GDC's inventory. They specialize in loose diamond, so I had to get it set at a local jeweler. Until the jeweler checked the IGI certification number, he could tell that it was lab grown, and everyone was very impressed by the quality. I have been telling everyone about the pros of going with lab grown diamonds, and I really hope the market for lab grown diamonds expands in the future (without some greedy mining companies lobbying against it)."
"Grown Diamond Corporation have massive inventory with great variety of fine cut diamonds. These diamonds are worth the cost and time. I had a great experience dealing with them so you can be assure for a great service at your reach. Thank You."
"Grown Diamond Corp has a HUGE selection of diamonds, as well as great images and videos. They even went out of their way to arrange a viewing in person at the NYC office. Customer service was top notch. Shout out to my boys Omkar and Tejas. I have to say, they exceeded all of my expectations and I would purchase from them again and recommend them to friends."
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