Unique Experience
A Unique Experience For All
Let Our Expertise Be Your Guide
Fine Jewelry
Certified Diamonds
Fine Swiss Watches
Diamond Earrings
Estate Jewelry
Gemstones
Sterling Silver
Coins & Bullion
SHOP
SELL
Unique Experience
We Have The Diamonds
We Are Your Trusted Source For High Quality Diamond Jewelry
GIA Certified Natural Diamonds
Diamond Engagement Rings
Diamond Stud Earrings
Solitaire Diamond Pendants
Diamond Tennis Bracelets
GIA & IGI Certified Lab Diamonds
Fancy Color Diamonds
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SELL
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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
SHOP
Let Our Expertise Be Your Guide
SELL
A Unique Experience For All
Fine Jewelry • Certified Diamonds
Fine Swiss Watches • Diamond Earrings
Estate Jewelry • Gemstones
Sterling Silver • Coins & Bullion
SHOP
SELL
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
SHOP
Let Our Expertise Be Your Guide
SELL
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
SHOP
SELL
We Buy, Sell & Trade
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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.

We will get back to you within 24 hours.

We Are Always Buying

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.

We also buy gold jewelry, scrap gold, fine Swiss watches, rings and silverware. Bring your items to one of our locations today to get a free purchase value offer for your items. If you sell, you leave with immediate payment.

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.

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Shop Diamond Exchange

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

Shop Diamond Exchange

Our Customers Love Us! Please Read Our Reviews.

Diamond Exchange USA - Rockville
Diamond Exchange USA - Rockville
4.3
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Lauren WilkesLauren Wilkes
21:23 25 Jan 23
This place is amazing. The service provided was nothing short of amazing. My fiancé brought in a ring that was passed on to me and helped create the most beautiful engagement ring with the help of Justin. Justin went above and beyond in helping him and my ring is stunning. I seriously haven’t been able to get over how beautiful it is. Their prices are great as well .Thank you again Justin for helping create the most beautiful engagement ring for me.
kasey rosenkasey rosen
19:59 22 Oct 22
Went to this jewelry store after a small Diamond fell out of my engagement ring. The customer service was friendly and were able to find a Diamond small enough to replace what had fallen out. Extremely thankful for this store!!!
Tones TonesTones 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 SippelMara 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 VMatty 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.
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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.

Learn More About Custom Design

We have four locations around Maryland, D.C. and Northern Virginia to serve you. Stop by during normal business hours.

Rockville

11136 Rockville Pike
Rockville, MD 20852
301-230-1212
Mon – Fri: 10am – 6pm
Sat: 11am – 4pm

Cockeysville

Baltimore Diamond Exchange

11222 York Road
Cockeysville, MD 21030
410-329-1801
Tue – Fri: 10am – 5pm
Sat: 10am – 3pm

Columbia

Rockville Diamond Exchange

5550 Sterrett Pl #309 
Columbia, MD 21044
443-896-0008
Mon – Fri: 10am – 5:00pm

McLean/Tysons

1475 Chain Bridge Rd
McLean, VA 22101
703-848-8000
Mon-Fri: 11am – 6pm
Sat: By Appointment

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