Diamond Exchange USA

Coin Dealer in Columbia, Maryland

★★★★★
4.5(41 reviews)

Diamond Exchange USA serves the Columbia area as a go-to destination for coin collectors and numismatic enthusiasts. Their 4.5-star average from 41 reviews speaks to the quality of service collectors have come to expect. Offerings generally span U.S. coinage, world coins, precious metals, and currency.

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Diamond Exchange USA

5550 Sterrett Pl STE 309, Columbia, MD 21044, USA

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(443) 896-0008

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* Information may change. Verify details on the dealer's official website before visiting.

Upcoming Coin Shows in Maryland

Baltimore Stamp and Coin ShowOct 3rd, 2026 · Maryland State Fair Ground, Mosner Miller BuildingHunt Valley - Timonium Coin and Currency ShowAug 23rd, 2026 · Embassy Suites by HiltonCambridge Coin ShowNov 21st, 2026 · American Legion Post 91Whitman Coin & Collectibles Expo - Baltimore SummerJun 11th - Jun 13th, 2026 · Baltimore Convention Center
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Collector resources

PCGS vs. NGC vs. ANACS: grading comparisonHow to spot counterfeit coinsLincoln cent key dates & varietiesCollecting Morgan silver dollarsHow to sell your coins

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