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275 Post Street #600B
San Francisco, CA 94108

SELL YOUR FINE JEWELRY, DIAMONDS, ESTATE JEWELRY, AND FINE TIMEPIECES

*SAME DAY CASH PAYMENT *TRANSPARENT, NO OBLIGATION *PRIVATE DISCREET APPOINTMENTS, *FREE EXPERT EVALUATION

DIAMOND & JEWELRY BUYERS

INTEGRITY

Our knowledgeable experts will examine your fine jewelry including rings and diamonds in San Francisco. To guarantee the maximum payout to you, our experts take into consideration the era, the workmanship, the quality and marketability of your jewelry evaluation.

SECURITY

FFAchieve maximum price for your diamonds by consulting with our GIA trained expert. We will share our 35 years of experience and knowledge with you at no cost. We have paid fair market value for thousands of diamonds we have purchased in the past and we guarantee the same to you.

HISTORY

We can buy any size estate. Our reputation and knowledge in the diamond industry guarantees us access to any amount of capital needed to purchase any size estate. We will analyze your fine estate pieces one at a time, to estimate their fair market value. We will base our offer on different factors like age, condition, rarity, quality and the maker of the piece (example Tiffany, Buccellati, Asprey, David Webb, etc.)

RELIABILITY

We are interested in vintage and fine timepieces, like Rolex, Audemars-Piguet, Panerai, Jaeger-Le-Coultre, Cartier, Piaget, Breitling, Hublot, Patek Philippe, Vacheron-Constantin, IWC, Harry Winston, Franck Mueller, Bedat, etc. Secure payments are made immediately after acceptance.

OVER $100 MILLION IN TRANSACTIONS


For over 35 years, we have been an established and successful diamond dealer in downtown San Francisco with global trade connections in Antwerp, Tel Aviv, Mumbai, Hong Kong and other diamond trade centers. We specialize in buying diamonds directly from the public and have the best connections to either direct consumer channels or international diamond markets. We have bought and sold large quantities of high quality of precious gems over 35 years and that is why our knowledge and expertise will maximize your payout. Our vast experience as diamond and jewelry buyers can help you when it comes in selling your jewelry, selling luxury watches (selling your Rolex for instance), and selling diamonds. Our GIA graduate gemologists are here to help you determine the value of your jewelry. Contact us to sell your diamond or sell your diamond engagement ring to us in San Francisco.


Union Square Diamond Buyers was not created just to take advantage of today’s high gold prices and close the door as soon as the rush is over. We are here to provide yet another service to our customers when their jewelry is no longer satisfying their needs.


We are an established business that is well known in the Bay Area as well as in the U.S. and internationally.

WHY SELL TO UNION SQUARE

DIAMOND BUYERS

FREQUENTLY ASKED QUESTIONS:

GUARANTEED BEST RESULTS

Union Square Diamond Buyers: An established and trusted business for over 35 years! People sell to us because we pay more for your diamonds and fine jewelry. Contact our expert valuation team.

HIGHEST PRICE

We can help you sell your jewelry! We have been diamond buyers and jewelry buyers in the heart of San Francisco for over a quarter of a century. We have the knowledge and expertise to evaluate your valuables and offer the best prices! We offer the most cash for your diamond, fine jewelry and engagement rings. Call 1 (800) 424-GEMS (4367) for an appointment, a phone consultation or a free expert evaluation. Our expertise as diamond buyers and jewelry buyers means more cash for you, when trying to sell your diamond jewelry in San Francisco. Union Square Diamond Buyers offers a process that is fast, discreet and safe. Our showroom is conveniently located close to Union Square, close to parking, BART and all major banks. Come in and sell diamond ring or sell your jewelry to an established and well known business in the heart of SF. We are the trusted diamond jewelry buyers in San Francisco. Selling your jewelry to a trusted and established business in San Francisco, will give you the highest payout. Many of our clients search the web using terms such as “diamond buyers San Francisco“and get a lot of confusing results. We can provide one of the easiest process to ensure you get the best price for your engagement ring or fine jewelry. Contact us to sell your diamond or sell your diamond engagement ring or sell your Rolex in San Francisco.


MONEY FOR YOUR 

DIAMOND 

ENGAGEMENT RINGS 

AND MORE IN 

SAN FRANCISCO

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SAN FRANCISCO BAY AREA

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