Jewelry Buyer in Miami | Aventura & Coral Gables Jewelry Buyer - Diamond Banc

Fast. Simple. Secure.

Miami's Premier Jewelry Buyer

Start Online, Complete in Person.
Visit our offices in Coral Gables & Aventura.

David Fernandez, Market Director

David Fernandez

Coral Gables, FL Market Director

schedule Book Appointment
Jan V.
I sold a Rolex watch. The transaction was handled professionally and in a timely manner and I got a fair market price.
Windy G.
Courteous, knowledgeable, efficient. Will use them again.
Angela E.
Jodi was awesome!

Your Item

About Your Item

Your Information

Send offer to...


Thank You

Thank You

We have received your submission.

A member from our team will
contact you shortly!

David Fernandez, Market Director

David Fernandez

Market Director

Coral Gables, FL


David is the Director of the Diamond Banc Miami with over 15 years of experience in the Fine Jewelry and Luxury Watches industry. His past work experience includes brands such as Cartier, A. Lange & Sohne, and Patek Philippe. David applies all his knowledge and expertise in securing the best values and lowest rates for his customers, and most importantly, to provide excellent customer service. David is also bilingual and can assist customers in both English and Spanish. Visit David in our Coral Gables Office!

Xammany Vongratsamy, Market Director

Xammany Vongratsamy

Market Director

Aventura, FL

phone 954-323-8475

With a career spanning more than 30 years, Xammany Vongratsamy is one of the most experienced luxury jewelry experts in the Florida area. She has worked for many of the world’s most prestigious brands, including Tiffany & Co., Patek Philippe, Cartier, Chopard, Chanel, Breguet, Harry Winston, Jaeger LeCoultre, and Girard Perregaux.

Xammany is known for her no-nonsense approach to evaluating your jewelry items—she knows exactly what she’s looking for and how to get you the highest possible offer. If you’re looking to sell your jewelry or secure an asset-based loan, Xammany has the expertise and experience to help you make the right decision.


Get a Quote

In Person or Online

Schedule a private evaluation at your local Diamond Banc or use our online submission form.

Start a Quote

In-Person Evaluation

Complete In Person

Meet privately with a Diamond Banc director who’ll evaluate your items right in front of you & make you an offer.


Get Funded

Fast & Secure

If you accept our offer, we will issue payment immediately via check or wire transfer.


How does it work?

There are two ways to work with us:

  1. Visit an office near you: Schedule an appointment at one of our offices nationwide to have your jewelry evaluated on the spot, right in front of you, in a private, luxury environment & get paid immediately.
  2. Work with us online: Fill out our online submission form above & receive a quote within 24 hours from one of our expert jewelry buyers. Our team will provide you with a fully-insured shipping label to mail your item(s) to our headquarters & issue funding immediately upon accepting our offer.

Why should I sell my jewelry to Diamond Banc?

Clients love working with Diamond Banc based on the transparency and guidance that we deliver.

We show you wholesale comparable items to yours, what dealers are asking for them, and what dealers are selling them for and we show you this on the largest dealer-to-dealer trading platform in the world. We explain why we’re making the offer that we’re making, and allow you to understand that you’re truly getting the most they can for your fine & designer jewelry.

Our ultimate goal is to ensure you feel confident in your decision to sell your jewelry by providing you with the transparent industry-specific education you deserve.

What jewelry brands do you buy?

Diamond Banc purchases a variety of designer jewelry brands, including but not limited to, Cartier, Tiffany & Co., Graff, Van Cleef & Arpels, Harry Winston, & David Yurman.

How do I get paid?

Upon acceptance of our purchase offer, we will issue payment to you immediately via check or wire transfer.

How long does it take to sell my jewelry?

Selling your jewelry to Diamond Banc is fast, simple, and secure. Schedule an appointment at a Diamond Banc location near you, have your jewelry evaluated on the spot, and get paid immediately. Typically, this process takes less than 40 minutes.

Are there any fees?

No. When you sell your jewelry to Diamond Banc, there are no additional fees. We encourage you to visit an office near you for a free, no-obligation item evaluation to find out what your jewelry is worth.

What is a Jewelry Equity Loan?

At Diamond Banc, you have the option to retain ownership of your jewelry, while still enjoying the liquidity as if you sold outright. Diamond Banc is the nation’s #1 jewelry buyer & jewelry-secured lender.

With a Jewelry Equity Loan, you can borrow against the value of your jewelry while still retaining ownership of it. Visit our Jewelry Equity Loan page for more information.

From The Founder

What Clients Are Saying

Holton BuggsHolton Buggs ★★★★★ Response from the ownerThank you for the 5-star rating! Your support means a lot to us! GCAGCA ★★★★★ Ive sold a few of my watches with David at diamondbanc and was very pleased with each transaction. They were professional, gave fair pricing and the entire process was smooth. If you’re looking to sell a watch I highly recommend working with them. Thanks guys for all your helpResponse from the ownerThank you for choosing us to sell your watches! We’re glad you had a positive experience working with David and found the process smooth. We appreciate your recommendation and kind words!!! Thank you!!! DANIA BradyDANIA Brady ★★★★★ It was a pleasure doing business with this company and David. David was professional, quick and honest. The level of expertise and knowledge plus the detailed explanation of everything made it everything easy and smooth. I highly recommend David. If there were 100 stars ⭐️ I would rate him and his company with 100 stars. Thank you!🙏Response from the ownerThank you so much, Dania! We truly appreciate your kind words and recommendation. 🌟 It was our pleasure to provide you with professional, quick, and honest service. Your satisfaction is our priority, and we’re delighted to hear that our expertise and detailed explanations made the process easy and smooth for you. Thank you for choosing us as your trusted company. 🙏 Frank ValenciaFrank Valencia ★★★★★ Jason was very awesome to work with took the time to research my watch to give me the best priceResponse from the ownerThank you, Frank! We appreciate your kind words and are glad to hear that we provided you with excellent service. Melwin CorreiaMelwin Correia ★★★★★ Had a great experience with Diamond Banc in selling my Jewelry. Service was great by David and the process was easy without any issue. Very reliable with fair market price exchange. Would like to recommend my friends and family to try it incase if you want to buy, sell or loan your jewelry.Response from the ownerThank you, Melwin! We appreciate your kind words about your experience with Diamond Banc. We’re glad that David provided great service and made the process easy for you. We look forward to helping your friends and family with their jewelry needs. Kevin GarrityKevin Garrity ★★★★★ Response from the ownerThank you for the 5-star rating! We appreciate your support! NELSON VIVASNELSON VIVAS ★★★★★ I’m very happy and pleased to work with you this is my second time . Thank you Jason and David and everyone 👍👍👍👍Response from the ownerThank you, Nelson! It’s been wonderful working with you again. We appreciate your kind words and look forward to serving you in the future. Have a great weekend Sir! Susan JSusan J ★★★★★ It went both smoothly and professionally. I would definitely recommend them if attempting to sell a timepiece.Response from the ownerThank you, Susan! We appreciate your recommendation and are glad to hear that your experience was smooth and professional. Thank you!!!!! Colleen MarieColleen Marie ★★★★★ Amazing customer service! Fast and easy 🙂 loved the whole process to get these beat value for my fine JewleryResponse from the ownerThank you so much for your kind words! We’re glad to hear that you had an amazing experience with us!! We appreciate your support! Lucien SoarLucien Soar ★★★★★ David was really great , very professional. Great service ! I definitely recommend this company over any other in Miami.Response from the ownerThank you, Lucien! We appreciate your kind words and recommendation. Much appreciated!!!! javis johnsonjavis johnson ★★★★★ Response from the ownerThank you, Javis, for the 5-star rating! We appreciate your support. Bruce MartinBruce Martin ★★★★★ Response from the ownerThank you, Bruce! We appreciate your 5-star rating! It is a pleasure to assist you!! Jacquy GraingerJacquy Grainger ★★★★★ Response from the ownerThank you for the 5-star rating, Jacquy! We appreciate your support. Julio CardosoJulio Cardoso ★★★★★ David was very professional and service was excellentResponse from the ownerThank you, Julio! We appreciate your kind words! It was a pleasure to assist you! Thank you Sir! Kirdson SanzKirdson Sanz ★★★★★ I must say it was a fantastic experience. David was knowledgeable, friendly, and the transaction went smoothly. I appreciate his professionalism and would highly recommend them for anyone looking to buy or sell watches.Response from the ownerThank you, Kirdson Sanz! We’re so glad to hear that you had a fantastic experience with David. We really appreciate your recommendation. M BM B ★★★★★ It was a great pleasure making business with David. Very Professional, absolutely satisfied with the service provided. From the entrance, to meeting him, to deal with him all the way to finishing the transaction I felt safe and it’s 100% trustable business.Response from the ownerThank you so much for your kind words! It means a lot to us that you felt safe and trusted our business throughout the entire transaction. We appreciate your satisfaction and it was a pleasure working with you. Emily CordovaEmily Cordova ★★★★★ Excelente servicio y atención !Response from the ownerMuchas gracias Emily!! Un verdadero placer asistirle!!! Valentina CastellonValentina Castellon ★★★★★ Response from the ownerThank you so much for the 5-star rating, Valentina! We appreciate your support. Yilian BlancoYilian Blanco ★★★★★ Your jewelry feels safeResponse from the ownerThank you, Yilian, for your kind words and amazing 5 star review! We appreciate your support. Cliff Rouzier (Cliffdogg)Cliff Rouzier (Cliffdogg) ★★★★★ very nice and personable experience. friendly, fair and easy to work with. would definitely recommend to anyone looking to sell jewelry.Response from the ownerThank you, Cliffdogg! We appreciate your kind words and recommendation. It was a pleasure working with you. Diana PlataDiana Plata ★★★★★ What a great service! Easy, reliable, and extremely professional. David was so helpful from the moment I reached out to the company. I would highly recommend Diamond Banc to anyone.Response from the ownerThank you, Diana! We appreciate your kind words and recommendation. David is always here to assist you with anything you need. raul reyesraul reyes ★★★★★ Muy buen servicio estoy más que agradecido con Daniel 🙏Response from the ownerMuchas gracias Raul!! Aqui para servirle y muchas gracias por las 5 estrellas!! Luis LopezLuis Lopez ★★★★★ Response from the ownerMuchas gracias Luis! Es siempre un verdadero placer asistirle!! ricardo szlezingerricardo szlezinger ★★★★★ Great attention to detail .Response from the ownerThank you Ricardo!!! I appreciate it Sir. Pleasure to meet you. Thanks!!! lazaro gonzalezlazaro gonzalez ★★★★★ Amazing person! Good buisness! I highly recommend this gentlemanResponse from the ownerThank you for such a Great 5 star Review!! Much appreciated! Michael AcevedoMichael Acevedo ★★★★★ Un servicio muy profesional y honesto . Los recomiendo!!Response from the ownerMuchas gracias por las 5 estrellas Michael!! Un placer asistirle!! Gracias! jason citrojason citro ★★★★★ Very professional and honest. I’ve been to other and it felt like I was dealing with a used car salesman: Elijah and Diamond Banc are the real deal. I will hopefully be doing business with them again.I highly advise you check them out!Response from the ownerThank you for the amazing 5 star review! I really appreciate it! Annette TorresAnnette Torres ★★★★★ Great, and reliable. A trustworthy company.Response from the ownerThank you for sharing this great 5 star review! It is a pleasure to assist you! Thanks Annette! Jose G. Abinazar FigarellaJose G. Abinazar Figarella ★★★★★ ExcelenteResponse from the ownerMuchas Gracias!! Muy agradecido! Gabriela CapurroGabriela Capurro ★★★★★ David was extremely helpful. Smooth transaction.Highly recommended.Response from the ownerDear Gabriela, Thank you so much for sharing your experience with us! It is a pleasure to assist you! Thanks Gabriela! Miguel MontesinoMiguel Montesino ★★★★★ I was pleasantly surprised by how fast and honest the process was, in less than 30 minutes item was inspected, a deal was signed, and money was in the bank account in less than 2 hours. I don’t think it can get better than this. Thanks David for making this super easy.Response from the ownerDear Miguel! Thank you so much for the great 5-star review!!! I really appreciate it! Maria AvellanedaMaria Avellaneda ★★★★★ Response from the ownerThank you Maria! Andrea GoldmanAndrea Goldman ★★★★★ David was friendly, professional and knowledgeable. He helped me to get a fair deal for my jewelry. The whole process was fast and I received the money in a couple of hours.Response from the ownerDear Andrea! Thank you for sharing this amazing 5 star review! I really appreciate it! Thank you!!! Zack AkersZack Akers ★★★★★ Best service! They give great value, always a pleasureResponse from the ownerThanks Zack! It is always a pleasure to assist you Sir! Thank you for the amazing 5 star review!!!! Rose Bauer RiveroRose Bauer Rivero ★★★★★ Professional and great prices.Response from the ownerThank you so much Rose!!! Much appreciated! Thanks!! Alisa NebolsinaAlisa Nebolsina ★★★★★ I had such a great experince. David is professional and trustworthy. Thank you!Response from the ownerDear Alisa! Thank you so much for the 5 star review! It is a pleasure to assist you! Thank you!!! Israel BlancoIsrael Blanco ★★★★★ My experience was excellent. Elija was very friendly and professional. I would definitely do business with them again.Response from the ownerThank you so much Israel! It is a pleasure to assist you! Best David! Thanks! Javy JimenezJavy Jimenez ★★★★★ Response from the ownerThank you so much!!! Gio RaitzGio Raitz ★★★★★ Response from the ownerThank you Gio! Much appreciated! It is a pleasure to assist you! Carl GhedinCarl Ghedin ★★★★★ Response from the ownerThank you Carl!! Group TenGroup Ten ★★★★★ Very honest operation, straight forward and.hassle free. David was a pleasure to deal with and he pays top dollar.Response from the ownerThank you so much for the 5 star review! I appreciate it!! Jorge EnriqueJorge Enrique ★★★★★ David was very professional throughout the whole process in the sale of my Rolex watch. I highly recommend him and Diamondbanc. Thank you!Response from the ownerThank you Jorge! A real pleasure to assist you Sir! Thank you for the amazing 5 star review! Hanoi MachadoHanoi Machado ★★★★★ Response from the ownerMuchas gracias Hanoi!! Yolgies CardosoYolgies Cardoso ★★★★★ David was very professional, excellence service. I really recommend Diamond Banc for all your jewelry needs.Response from the ownerThank you so much for taking the time to leave me such a great 5 star review! I appreciate it. Nice meeting you! Thanks Sir! Al LopezAl Lopez ★★★★★ Great service, professional and transparent business . thank youResponse from the ownerThank you so much!! A real pleasure to assist you!! Olga OlgaOlga Olga ★★★★★ Estoy muy satisfecha con toda la amabilidad y atenciones recibidas de parte de David, es una persona que te da información, servicio, y ayuda, en todo lo que quieras saber acerca de joyas,tiene muchos conocimientos, para miDavid es lo máximo, Bendiciones para ti.Response from the ownerMuchas gracias Olga! Fue un verdadero placer asistirle! Muy agradecido con sus comentarios! Feliz fin de semana! Muchas gracias!! carlospena747carlospena747 ★★★★★ Great Service with David at Diamond Banc. Just the right price. Fast payment. Overall 5 Stars.Response from the ownerThank you so much for the great 5 star review!! I really appreciate it! Olga TOlga T ★★★★★ Had a great experience with Diamond Banc and David in particular. Sold few jewelry pieces and watch. Everything was fast and super professional.Response from the ownerDear Olga! Thank you so much for this amazing 5 star review! It was a real pleasure to assist you! Thank you! Gonzalo LeonGonzalo Leon ★★★★★ David is the best!Response from the ownerThank you Sir!! Saludos!! js_loader
See all Google Reviews

Start Online or Visit An Office Near You

What We Buy

Not All Miami Jewelry Buyers Are The Same: Select a True Expert

If you own high-end jewelry or fine watches, it can be a daunting task trying to sell them, let alone know what your items are truly worth. You want a company that is reputable and will give you a fair price for your valuables. Diamond Banc of Miami, Florida is one such company with an excellent reputation for providing prompt, courteous service. We offer the highest possible prices for items such as diamond jewelry, Rolex watches, and any other high-end valuables.

Diamond Banc employs true experts in the jewelry industry and utilizes its vast network of diamond dealers, fine retail jewelry store partners, online selling platforms, and watch dealers to ensure we are able to identify all of the value-adding factors on your jewelry items. This ensures we are able to offer you the maximum amount when you sell your jewelry in Miami. Our staff of experts participates in continual updated training and authentication courses to ensure we are offering our clients the best experience.

Sell Your Jewelry in Miami, Coral Gables, & Aventura

Receive the highest offers for your jewelry in southern Florida at Diamond Banc. We are the premier jewelry buyers in Miami. We treat our clients with kindness, promptness, and professionalism. That’s why they choose us when they decide to sell fine jewelry in Miami. We are always happy to provide our clients with the details of their items and zero pressure evaluations. Whether you’re wanting to sell your gold necklace or a 5.00-carat diamond ring in Miami FL. David, the Director of our Miami, Coral Gables office has over 15 years of experience in the fine jewelry industry. His extensive experience allows him to properly evaluate your pieces and offer you the most for your jewelry.

Our process is straightforward, and simple, and we fund transactions immediately. Start the process online to discover the value of your items and visit us in person at one of our Diamond Banc Miami offices.

Schedule an appointment at one of our Diamond Banc Miami offices:


Diamond Banc is Actively Buying The Following in Miami:

[lgc_column grid=”50″ tablet_grid=”50″ mobile_grid=”100″ last=”false”]Tennis Bracelets: We buy tennis bracelets from two carats and up. We pay a premium for large total carat weights. We buy diamond bracelets of all kinds, including diamond bangles, diamond cuffs, etc.

Earrings: Diamond Banc buys diamond earrings of every style. We are buyers of designer earrings including designers such as David Yurman, Cartier, Henry Dunay, Lagos, John Hardy, Penny Preville, Tiffany & Co., and many more! We buy diamond studs, diamond hoops, diamond drop earrings, diamond dangles earrings, and more.

Diamond Necklaces: We actively purchase diamond necklaces and pendants of all types and styles. Diamond Banc in Miami buys everything from classic pieces such as diamond solitaires to high fashion designer styles to vintage and inherited estate diamond necklaces.[/lgc_column]

[lgc_column grid=”50″ tablet_grid=”50″ mobile_grid=”100″ last=”true”]Luxury Watches: David has years of high-end watch experience and truly enjoys buying vintage and modern watches. Some of the brands with the best value retention are Rolex, Patek Philippe, Cartier, Omega.  David has had extensive training in evaluation and authenticating fine Swiss timepieces.

Estate Jewelry: Diamond Banc of Miami buys estate jewelry, antique cut diamonds, such as Old European cut and Circular Brilliant cuts. We also purchase estate loose diamonds, antique cut diamonds, etc.

Designer Jewelry: We are the top designer jewelry buyer in Miami and are actively seeking items from designer brands such as Harry Winston, Tiffany & Co., David Yurman, Cartier, and more.[/lgc_column]

Visit Diamond Banc in Coral Gables

Our Coral Gables Market Director, David, has over a decade’s worth of experience evaluating and purchasing jewelry of all kinds. David has bought thousands of pieces of jewelry within the south Florida community and is truly an expert in his field. Rest assured, we will make you the most competitive offer possible while providing all of the information needed to make the best decision for your situation. His work history includes brands such as Cartier and Patek Philippe. David leverages all his knowledge and expertise to secure the best values for his customers, along with providing excellent customer service. David is bilingual and can assist customers in both English and Spanish.

Book An Appointment

Visit Diamond Banc in Aventura

Our Aventura Market Director, Xammany, has the depth of knowledge and the extensive experience you deserve when searching for a jewelry buyer in Aventura. Diamond Banc, serving Aventura, provides top-quality consultation for clients who wish to sell jewelry in Miami. Our market directors are experts in the South Florida market, offering unparalleled expertise and market analysis when it comes to selling or getting a loan secured by your fine jewelry items. This ensures you receive the highest possible value assessment for your items. Our expert buyers in Aventura will provide you with an accurate evaluation and financial solution that is tailored to your specific needs and desires.

Book An Appointment 

Our nationwide selling platform allows us to pay industry-leading prices for jewelry of all kinds. Having the right selling avenue for the pieces is the key to ensuring we can pay our clients the most for their items. Whether you are interested in selling one item or an entire estate, we are excited to earn your business. Our buying process is simple, fast, and transparent. You can start the process online to receive an initial offer amount or visit us in person at our Diamond Banc of Miami offices in Coral Gables or Aventura.

Diamond Banc of Miami serves a wide area of the Miami, Coral Gables, & Aventura metro including but not limited to:

Coral Gables Downtown, Coral Gables – Merrick Park Mall, Coral Gables Miracle Mile Plaza, Coconut Groove Shopping Area, Coconut Marina, Coconut Shopping Mall, Miami Dadeland Mall area, Miami Dolphin Mall area, Miami Bal Harbour Shop, Miami Design District Mall, Miami Tropical Park, Miami Brickell City Center, Miami Calle Ocho, Miami Town, and Country Mall, South Beach – Ocean Drive, Miami Beach Soho House, Miami Beach Shopping Area Lincoln Road, Miami Beach South Point Park

Start Online or Visit An Office Near You

Please wait
while we are uploading...