Business Details
Custom Engagement Rings & Fine Jewelry in New York
MDC Diamonds has established itself as a premier destination for fine jewelry and diamond engagement rings. With over 60,000 GIA-certified loose diamonds in stock, we offer unparalleled selection across all shapes, colors, and clarities to suit diverse preferences and budgets. Our New York showroom provides personalized appointments for in-person consultations while maintaining a robust online presence for global accessibility. Through decades of industry experience, we've developed expertise in custom jewelry design, allowing clients to create one-of-a-kind pieces through our four-step process of selecting settings, diamonds, and final details.Our commitment to quality extends to wedding bands, eternity rings, and diamond jewelry collections featuring necklaces, pendants, bracelets, and earrings. We maintain strict quality control through GIA certification standards while offering educational resources covering diamond grading fundamentals and advanced purchasing considerations. Our dedicated customer service team operates extended hours Monday through Friday to support clients throughout their jewelry journey.
Services
Engagement Rings
Loose Diamonds
Wedding Bands
Diamond Jewelry
Custom Designs
Special Order Rings
Eternity Bands
Diamond Education
International Shipping
Showroom Appointments
Highlights and features
- We offer free shipping and 30-day returns on all orders
- Our collection features over 60,000 GIA-certified loose diamonds
- Custom design options available for unique, personalized jewelry
- Expert consultants available via phone for personalized assistance
- Visit our New York showroom by appointment for in-person service
Associations and certifications
- Gemological Institute of America (GIA)
What people say
Perfectly matched diamonds
Elegant and show-stopping
Excellent service
Highly recommend
Lasting quality
Services
Engagement Rings
Our engagement ring collection features classic and modern designs with GIA-certified diamonds. Clients can choose from pre-set rings or create custom designs through our four-step process. Each piece combines superior craftsmanship with ethical sourcing standards.
Loose Diamonds
We maintain an extensive inventory of over 60,000 loose diamonds in various shapes, colors, and clarities. All stones come with GIA certification for quality assurance. Customers receive expert guidance to help select the perfect diamond for their needs.
Custom Jewelry
Our custom jewelry service allows clients to create unique pieces through a collaborative design process. Customers can select settings and diamonds separately before final assembly. This service includes personalized consultations with our jewelry experts.
Diamond Education
We provide comprehensive educational resources covering diamond grading fundamentals and advanced purchasing considerations. Materials explain the 4Cs (cut, clarity, color, carat) and help customers make informed purchasing decisions.
International Shipping
Our services extend beyond New York with international shipping options available worldwide. We handle all logistics requirements for global customers while maintaining the same quality standards and return policies as domestic orders.
Questions
How do I choose the perfect engagement ring?
Start by exploring our online collection or schedule a showroom appointment. Our consultants will guide you through diamond selection and setting options to create your ideal ring.
Can I create a custom jewelry design?
Yes, our four-step customization process lets you select settings and diamonds separately before final assembly. Our team assists with design modifications and special requests.
What is your return policy?
We offer 30-day returns on all purchases with free shipping both ways. Custom orders may have different terms, which our consultants will explain during purchase.
Do you offer international shipping?
Yes, we provide international shipping services to customers worldwide while maintaining the same quality standards and return policies as domestic orders.
Are your diamonds GIA certified?
All our loose diamonds come with GIA certification to guarantee quality and authenticity. This certification covers the 4Cs (cut, clarity, color, carat weight).
Reviews (6)
Erin
May 15, 2022
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Wonderful experience! I was very nervous about doing anything online but Moishy kept me and my partner in the loop about our matching engagement rings throughout the entire process. I couldn't be happier about the ring and I cannot wait to propose with it. I can't post a photo yet because I don't want to ruin the surprise for my partner but it's perfect!
Maureen Reilly
May 12, 2022
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Moishy was very responsive. He answered multiple questions and was very helpful. He expedited our order to make sure my ring arrived in time for a family event. I absolutely love my ring and my mom's stone looks perfect in it which makes it even more special.
Deb Stella
Apr 27, 2022
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We have used MDC Diamonds NYC several times, first for my engagement ring, then the wedding band and another band to match and now my 15th anniversary ring! All the ring designs were custom made to my husband's specifications and created beautifully! The friendly service and constant communication is excellent! We are very pleased with the results! Highly recommend
Claudette Patterson
Mar 08, 2022
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I have always been nervous about ordering something from the Internet. But I have to say, I have to say, I have had the very best experience experience that a person can possibly have. I ordered my fiance's engagement ring and I have got to say it is the most beautiful ring I have ever seen in my life. Thank you to the designers and Moshiy for making my dreams and hers come true.
Reeanna Gajadhar
Mar 07, 2022
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I had purchased a ring before from MDC diamonds and as much as I loved it, it was lacking something extra, something personal. Moishy helped in redesigning it to make it even more meaningful than it already was to me. I was a bit skeptical because it was hard to express what I had in mind, but he along with his brilliant team redesigned it almost exactly to what I had envisioned. I also gave him and his team the added challenge of making my favorite costumed ring into a real one. I can honestly say both rings have far exceeded my expectations! Thank you so much! I Love it! I LOVE IT! I LOOVEE IT!
Mark Torbett
Feb 24, 2022
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They are excellent to work with! When I received my ring all the paperwork was in order and the ring was more stunning than I could have imagined. They are a pleasure to work with. Made the process very easy. Will definitely use them again!
