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Live Chat Support
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Call: 866-239-4315

10:00AM-7:00PM (ET)

10:00AM-4:00PM (ET)

or E-mail:
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Contact Us:

We welcome your questions and feedback. Feel free to contact us using any of the methods below.

Our diamond and jewelry consultants have the knowledge to help you make the right decision, and most calls are answered in ten seconds.

US, Canadian Customers:      1-866-239-4315

UK Customers:      0-800-520-0448

All Other Countries:              1-212-840-1417

Email Us:

We typically respond to customer e-mails within one business day. Send us your question in the form below, or send an e-mail:
US customers: service@mdcdiamonds.com
Canadian customers: service@mdcdiamonds.ca

UK Customers: service@mdcdiamonds.co.uk 

Live chat with our experts:
WhatsApp or Text +1-347-770-1518

Business hours: (all times are Eastern)

Monday through Thursday
10:00 AM to 7:00 PM

10:00 AM to 4:00 PM

Saturday and Sunday

If you have any other questions, please do not hesitate to contact one of our diamond and jewelry consultants in person at service@mdcdiamonds.com or 866-239-4315.



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View our education section for helpful information on more than just the 4 Cs.
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I can not say enough great things about MDC

I can not say enough great things about MDC. A few months ago, I lost my wedding ring and I was heart broken. I absolutely loved it and would never have had it upgraded or changed in any way. After searching for the exact same setting and not finding it, I settled for something close to it from another jeweler. When I received the ring, it just didn't wow me. It was beautiful, but it just wouldn't work for me. Again I was back online determined to find my original setting and then I found MDC. They had it! I called and spoke with Moishy, he was so pleasant and helpful. There was not a band to specifically match the setting of my engagement ring, but after discussing it with him, they could make one. I was just a bit worried about the deadline because my husband and I planned on renewing our vows in less than a month. He assured me that it could be done in time. Moishy was in constant contact with me during the process and always answered my questions about the progress in a very timely manner. I also spoke with Gladys on the phone, who was nothing but understanding and nice. I did get my ring in time for our vow renewal and they are breath taking! I love them. I highly recommend MDC!
Right Arrow Customers Say it best!
Read what customers have to say about their MDC Diamonds shopping experience.
I can not say enough great things about MDC
I can not say enough great things about MDC. A few months ago, I lost my wedding ring and I was hear...
Dena S
Seven Valleys, PA
October 29, 2019

MDC Diamonds International Inc is a BBB Accredited Business. Click for the BBB Business Review of this Jewelers - Retail in New York NY
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Customer Service Address: 580 Fifth Avenue Suite 349, New York, NY 10036
Corporate Address: Manhattan, New York, NY
We welcome visitors to our New York office. Office visits are by appointment only. Please contact our Customer Service center to schedule an appointment.
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