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CONTACT

PHONE

1-800-424-4367 (GEMS)

EMAIL

unionsquarediamondbuyers@gmail.com

VISIT US

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

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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.


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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

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FREQUENTLY ASKED QUESTIONS:
  • Do you buy gold?

    Yes, we buy gold. After testing the karat and weight, we pay you for what the current gold prices are at the time.

    We pay premium on major brand jewelry and signed jewelry pieces.

  • Why sell to Union Square Diamond Buyers?

    We have purchased millions of dollars in diamonds, diamond jewelry and watches in the US and internationally.

    We pay the highest prices in the industry. We have been in business for over 25 years and are accredited with

    Jahan Diamond Imports is also licensed and regulated by the state of California. Our excellent reputation has led us to maintain worldwide clientele. Serving returning and satisfied customers throughout several generations is a testimony of our integrity and honesty. Our expertise allows us to find the best home for every piece we buy.

  • How quickly will I receive my payment?

    We offer immediate payment by bank wire, check, cash, or cashier’s check.

  • How do you know how much my item is worth?

    Our experts are GIA Graduate Gemologists and have over 25 years of experience. We will give you an accurate appraisal of your pieces and make an offer. Besides the metal and stone value, we consider other aspects of your pieces such as age, era, and rarity.

  • Do you require an appointment to meet with our experts?

    Yes, we suggest making an appointment. Having an appointment guarantees one-on-one time with an expert. If any appraisals or certifications are available, we recommend you email or fax it prior to your appointment.

  • What if I cannot come into your showroom?

    We will arrange for your valuables to be picked up:

    1). By overnight reputable shipping companies insured up to $50,000.

    2). By armored truck for valuables over $50,000.

    3). In some cases, our experts will travel to your location.

    All items are insured at our location by Loyds of London.

  • What do you buy?

    We buy large diamonds over 1 carat, as well as fine rubies, sapphires, emeralds and gold jewelry. We also purchase luxury watches such as Cartier, Rolex, Patek Philippe, IWC, Panerai, Breitling, Vacheron Constantin, Audemars Piguet and more. If you have jewelry or an estate that is not listed above, do not hesitate to contact us.

  • Still have questions for Union Square Diamond Buyers?

    Please call us at 1 (800) 424-GEMS (4367)

  • Would a certified diamond be worth more?

    A certified diamond will not increase the diamond’s worth. Having a certification helps ensure that the diamond is not manufactured or altered in any way. Certification is a representation of the diamond primarily for determining its value. In some cases, having a certificate will help us make an offer before evaluating the actual piece.

  • Where can I find a submission form?

    For jewelry please click here

    For diamonds please click here

    For estate jewelry please click here

    For watches please click here

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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