Unique Experience
A Unique Experience For All
Fine Jewelry
Certified Diamonds
Fine Swiss Watches
Diamond Earrings
Estate Jewelry
Gemstones
Sterling Silver
Coins & Bullion
Let Our Expertise Be Your Guide
We Have The Diamonds
We Have The Diamonds
GIA Certified Natural Diamonds
Diamond Engagement Rings
Diamond Stud Earrings
Solitaire Diamond Pendants
Diamond Tennis Bracelets
GIA & IGI Certified Lab Diamonds
Fancy Color Diamonds

We Buy, Sell & Trade
We Are Your Trusted Source For High Quality Diamond Jewelry
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Slide
A Unique Experience For All
Fine Jewelry
Certified Diamonds
Fine Swiss Watches
Diamond Earrings
Estate Jewelry
Gemstones
Sterling Silver
Coins & Bullion
Let Our Expertise Be Your Guide
A Unique Experience For All

Fine Jewelry • Certified Diamonds
Fine Swiss Watches • Diamond Earrings
Estate Jewelry • Gemstones
Sterling Silver • Coins & Bullion

Let Our Expertise Be Your Guide
Slide
A Unique Experience For All
Fine Jewelry
Certified Diamonds
Fine Swiss Watches
Diamond Earrings
Estate Jewelry
Gemstones
Sterling Silver
Coins & Bullion
Let Our Expertise Be Your Guide
We Have The Diamonds

GIA Certified Natural Diamonds
Diamond Engagement Rings
Diamond Stud Earrings & Solitaires
Diamond Tennis Bracelets
GIA & IGI Certified Lab Grown Diamonds
Fancy Color Diamonds

We Buy, Sell & Trade
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With 40 years of service as the premier jewelry buyer and seller in the Maryland, Virginia and the D.C. area, we have earned our reputation based on integrity and the delivery of an enhanced experience for our customers. Graduate gemologists and our watch experts on staff allow for the most exact and fair transactions in buying and selling. Thanks for visiting Diamond Exchange.

We Are Always Buying

When you are ready to sell your diamond ring, unwanted jewelry, fine watches, sterling silver, estate jewelry, coins or other gemstones and precious metals items, we will make a competitive offer.

Our buyers are experts in valuing diamonds with GIA certificates, or certificates from IGI, AGS, HRD or EGL. No certificate? No problem – we will grade the diamond according to Gemological Institute of America standards. We have several GIA Diamond Graduate gemologists on staff.

Have you checked the value of your Swiss watch? If you want an offer for your Rolex, Patek, Omega, Breitling, Panerai, JLC or other fine watch, please bring it in to one of our locations.

We Deliver A First Class Experience

When you visit one of our Diamond Exchange USA locations, you’ll be greeted by one of our friendly owners or staff representatives. You’ll deal direct with experts in their field. And when you sell, payment is immediate.

Diamond Exchange Certifications
Diamond Exchange Payment Options

Please fill out this short form and tell us about your items.
We’re happy to provide options if you want to sell. 


Four locations to serve you. No appointment necessary.
Click or drag files to this area to upload. You can upload up to 2 files.
A quick photo or two with your smartphone is all we need.

Shop Our Collection Of New and Pre-Owned Diamonds, Jewelry & Watches

Bridal
Engagement Rings & Weddings Bands

Fine Watches
Watches like Rolex, Omega, Patek

Diamond Jewelry
Earrings, Bracelets, Pendants, Rings

Estate Jewelry
Art Deco, Victorian, Edwardian & More

Gemstone
Colored Gems & Fashion Gemstone

We Create Beautiful Jewelry

Looking for a unique, custom crafted piece of jewelry?
We’ve created thousands of one-of-a-kind jewelry designs for our satisfied clients.

Our Customers Love Us! Please Read Our Reviews.

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My fiancé came here to get my custom-made engagement ring and I can't express how ecstatic I am with the outcome. I came across my dream designer ring a while back and sent it to my now fiancé, not really thinking much into it.

When he proposed I was completely surprised and fell in love with the ring-it is so stunning and sparkles for days. I often find myself just staring at it because it is so gorgeous! It looks exactly like my dream ring, but even more beautiful. Plus it is even more special because it was custom made by my fiancé and he worked closely with them to design the ring. He said he had a great experience working with Katie, who was very knowledgeable and patient with him.

I highly recommend this place!

Jesse L., Potomac, MD

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I looked on-line to find a jeweler to sell an older 30 year old Rolex watch. I called and spoke with Keith on the phone. I arrived 30 minutes later. It took Keith about 15 minutes and he made me a very fair offer right about where I was hoping to sell the watch.

He and the other employees were friendly and helpful. It was a great experience.

I would recommend Keith and Diamond Exchange.

Alan Soon, Rockville MD

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I have been buying jewelry at the Diamond Exchange for almost 18 years. I have loved every piece purchased there and have introduced so many friends and family members to the store.

I trust them completely, whether it is buying, selling, or even repairing an item.

Mimi Eschbacher, Bethesda, MD

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I recently sold some of my inherited US Gold Eagles bullion coins and several graded and slabbed collectible Morgan dollars to Andrew over in Cockeysville.

He was extremely knowledgeable and made an offer that was right where I was expecting. I had heard great things about Diamond Exchange and Andrew, so I'm glad I made the visit!

Richard Franke, Baltimore, MD

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I visited Diamond Exchange andI was given excellent prices for the pieces I sold (and I was also given honest advice to not sell a few pieces of silver because it wouldn't be as good of a value for me- and I appreciated the honesty).

I was in the market for a new diamond eternity band and went to Mervis to look/get pricing. When I went to the Diamond Exchange to get a repair done, I discovered they also make/sell new jewelry. Justin showed me the most beautiful 2-carat diamond eternity band. The diamonds were very high quality, equal to Mervis quality, yet the price was about half! I was overjoyed and purchased my beautiful diamond band from the Diamond Exchange! I couldn't be any happier - my experience was seamless and I will be a repeat customer for life!

Bonnie Z, D.C.

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As a first time ring buyer, this was a very stressful experience for me. Justin at the Diamond Exchange did a fantastic job walking me through the process and showing me the differences in diamonds. Through working with Justin and the Diamond exchange, I was able to get the EXACT unique setting and a fantastic diamond for my fiancee.

It made me very happy to give my fiancee the exact ring she wanted and she was extremely happy with the ring. I strongly recommend the Diamond Exchange.

Jason Leicht, Chevy Chase, MD

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Tones Tones
Tones Tones
21:29 20 May 22
Spoke to Justin over the phone and he gave me a fair price on my Breitling without even looking at the watch. After completing that transaction came back the same day and they took my Rolex Sub at a reasonable price as well. I will be going back for future jewelry and watch needs.
Mara Catherine Sippel
Mara Catherine Sippel
15:07 16 Feb 22
Really fantastic place to find diamonds and other fine jewelry. Keith is an expert. He offers other services such as jewelry repair and cleaning. He also has beautiful estate jewelry all at very competitive prices. 110 percent. I’d never buy diamonds anywhere else.
Matty V
Matty V
04:02 07 Jan 22
An honest jewelry store. It was worth the drive from Alexandria. They were more reasonable than others for resizing. We also looked at some jewelry they had. Definitely not the heavy pressure sales type place. I recommend you check them out.
Robin Gittleson
Robin Gittleson
22:23 16 Dec 21
My husband and I had a great experience working with Keith at the diamond exchange. We bought earrings and had my engagement ring re set. The earrings are gorgeous and my ring looks brand new.Keith is easy to work with and his prices are very fair. I will always use the diamond exchange for future purchases.
Mak Isreal
Mak Isreal
16:04 25 Aug 21
Justin Carmody is the best! Everyone there is a specialist! I could feel that we were going to be taken care of by professionals the moment we entered. I didn’t have any doubts with Justin’s expertise and experience. This is an outstanding jewelry store. We were able to sell our previously purchased diamond solitaire ring from elsewhere and select a beautiful diamond eternity band with mesmerizing clarity and color. The quality in their fine selection is superior. Finally, my girlfriend is happy!
See All Reviews
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We have four locations around Maryland, D.C. and Northern Virginia to serve you. Stop by during normal business hours.
Our McLean shop is by appointment only.

Rockville

11136 Rockville Pike
Rockville, MD 20852
301-230-1212
Mon – Fri: 10am – 6pm
Sat: 10am – 4pm

Cockeysville

Baltimore Diamond Exchange

11222 York Road
Cockeysville, MD 21030
410-329-1801
Tue – Fri: 10am – 6pm
Sat: 10am – 3pm

Columbia

Rockville Diamond Exchange

5550 Sterrett Pl #309 
Columbia, MD 21044
443-896-0008
Mon – Fri: 10am – 6pm
Sat: 10am – 2pm

McLean

McLean Diamond Exchange

1750 Tyson’s Blvd. STE 1500
McLean, VA 22102
703-289-5128
By Appt. Only – Please Call

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