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!
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.
What Clients Are Saying…
Cassey Smith ★★★★★ Brintney Ingraham ★★★★★ Fast, easy and brilliant service. This is going to be a long review and I NEVER do these but that’s just how great my experience was. Here was my situation: I found myself needing access to cash for an investment so I thought about getting a loan on my Tiffany’s engagement ring. I found Diamond Banc’s website Sunday night. The very next morning their representative, XAMMANY, called me and said she could help me and that I just needed to come into their Aventura office for inspection. I went that same day about 4p in the afternoon. I took my Tifanny’s ring, authentication certificate and appraisal report with me. XAMMANY has great customer service and doesn’t make you feel like “you need them” like many other dealers. She is easy to talk to and very helpful, she makes the process PAINLESS and SEAMLESS. After inspection, Xammany wired the funds immediately. In 24hrs I had the funds wired that I needed and I didn’t have to miss an investment opportunity. My entire process was Sunday night thru Tuesday morning! If you need cash and want to borrow against any fine jewelry like Tiffany’s, Rolex, etc CHOOSE DIAMOND BANC!!!P.S I also applied at another company when I applied at Diamond Banc. Not only did they reply two days too late but they only offered me HALF of what Diamond Banc loaned me.Response from the ownerThank you for your 5-star review! I appreciate your support and honesty. Richard smith soto ★★★★★ I experienced incredible service and professionalism in dealing with Xammany at Diamondbanc. She was extremely knowledgeable on her craft, reassuring, and has a wonderful spirit on collaboration to create favorable results for all parties. High levels of integrity and I rec commend doing business with her. 10/10Response from the ownerThank you for recognizing Xammany’s expertise, professionalism, and collaborative spirit! We appreciate your kind words and recommendation. Aimee Benitez ★★★★★ I highly recommend working with Xammany! She is extremely knowledgeable and makes the entire process seamless! You can totally trust her and this company!Response from the ownerThanks for your feedback. Junier Alcántara ★★★★★ Woooow Xammany, I love her, she’s a sweetheart, the world need more persons like this, I appreciate your work.Response from the ownerThank you for your 5-star review! nisha jeudy ★★★★★ Wonderful service . Very detailed and professional. . Would come back againResponse from the ownerThank you for your 5-star review! Lori ★★★★★ Perfect place to go to get top price for your valuables same day.Response from the ownerWe’re delighted you found our service valuable and efficient – thank you, Lori! Virginie Leplus ★★★★★ After calling the first time, I made an appointment on line which was very easy. Very convenient office bld with safe free parking. Xammany welcomed us in her office and took the time to explain the whole appraisal process.We were very satisfied and would come.back and recommend her.Response from the ownerThank you for your 5-star review! It was such a pleasure to meet you, your husband and Smokey too! Have fun watching the eclipe and send me pictures!!! Michael Laster ★★★★★ Great people to work with,helped my family in time of need will definitely work with Diamond Banc in the future. ASSUME!!Response from the ownerThank you for your 5-star review! Gelson Yoli ★★★★★ The attention and friendliness from Xamany was very special and top notch. We received a great offer from her team and she made the transaction seamless and easy. I would definitely recommend anybody to her. Thank you Xamany!Response from the ownerThank you for your 5-star review! It was a pleasure to personally assisted you and your wife. Please stop by anytime! Andres Izquierdo ★★★★★ Great experience and excellent service. Will go back to Diamond Banc next time a new opportunity arises and definitely recommended.Response from the ownerThank you for your 5-star review Andres! Mila ★★★★★ She was the sweetest was nice to meet an honest buyer (:Response from the ownerThank you for your kind words, Mila! It was a pleasure assisting you as an honest buyer (: Lili Jara ★★★★★ Xammany is a remarkable individual, amazingly skillful in this business. Fun to talk, easy to converse any topic. I highly recommend her for evaluations on your precious jewelry. I definitely come back to her!!Response from the ownerThank you for your 5-star review! Allison Grant ★★★★★ My first time was a great experience I felt comfortable and everything went very wellResponse from the ownerThanks for your feedback. Jason Finkelstein ★★★★★ Professional, kind and flexible stayed late to make my much needed loan happen! Highly recommended!!!Response from the ownerThank you for your kind words, Jason! We appreciate your recommendation and are happy we could help make your loan happen. Anna Korsky ★★★★★ Highly recommendResponse from the ownerThank you for your 5-star review! Andrea Dent ★★★★★ I had the pleasure of visiting the Diamond Banc yesterday and found the owner and the entire experience to be AWESOME!!! I had a few pieces of jewelry to sell. The owner took her time determining the value and gave me a more than fair price for my pieces. I highly recommend this companyResponse from the ownerThanks for your feedback. Bruno Papa ★★★★★ Great experience wilt Xammany, fast, practical and concrete.Response from the ownerThanks for your feedback. Carol Deane ★★★★★ I felt very comfortable with their transparency of my diamond appraisal. Extremely professional.Response from the ownerThank you for your 5-star review! Erez Jontef ★★★★★ Smooth and professional transaction. Too much text prior but go to Xammany (sho money) and she is very professional and smooth. I received my wire same day and it was better than expected. Thanks!! I will use this service again.Response from the ownerThanks for your feedback. It was a pleasure to personally assisted you. NELSON VIVAS ★★★★★ Thank you for your service I’m pleased very professional, this is my second time working with you and I’m very happy. GraciasResponse from the ownerThanks for your feedback. Waheed Wazidali ★★★★★ Wonderful experience. Friendly, professional and extremely helpful. Xammany was thoughtful and understanding. I had an excellent visit and experience!Response from the ownerThanks for your feedback Waheed. Nattie Verna ★★★★★ I had a great experience at Diamond Banc.Once again X manny treated me like family. Thank YouResponse from the ownerIt was a pleasure to assist you. Pam Walker ★★★★★ Xammany provided excellent customer service 😊.Response from the ownerThank you for your 5-star review! Mrs. T ★★★★★ My first experience and it was welcoming, comfortable and professional. Xammany made the process seemless and I was happy with the price offered for my luxury watch. Thank you.Response from the ownerThank you so much for your feedback TT! ken v ★★★★★ Xammany was amazing sheTakes care of us with quality and care every time From My Mother to my Brothers . To make sure we left smiling and Happy!Response from the ownerThanks for your feedback. Steve Stein ★★★★★ My wife and I were offered a great price for some jewelry that both of us don’t wear. We dealt with Xammany who is very personable and interesting. We enjoyed talking with Xammany about Thailand. I would deal with Diamond Banc again.Response from the ownerThanks for your feedback. Mark Keller ★★★★★ Great service, offer was 25% higher than another place.Response from the ownerThanks for your feedback. Daruco Pacouloute ★★★★★ I’m a return customer and the service is the same . Excellent!! Xammany saved the day !!!! AGAIN !!!’nnnResponse from the ownerYou’re welcome anytime Sir! Даниил Елисюк ★★★★★ I want to say, thank you for the director of the company Xammany, for the service that she provided during whole selling process. Wonderful service!Response from the ownerThanks for your feedback. gabriel maguina ★★★★★ Working with Xammany was great. Very reliable and gave me a good value for my watch. Will be working with her again.Response from the ownerThanks for your feedback Gabriel. Looking forward to assisting you again soon. fernando caceres ★★★★★ Xammany was awesome 🤩 great client service with a lot of attention for detail. Was able to sell my jewelry, and leave happily. I will definitely be back. Highly recommend 👌🏼Response from the ownerThank you so much Fernando. It was a pleasure to assisted you. Julio Avila ★★★★★ Highly recommend!Response from the ownerThank you Julio! Emily Buckley ★★★★★ Response from the ownerThank you for your 5-star review! E Manning ★★★★★ Xammany in Aventura is incredible- she’s patient, thorough and inclusive as she shares what and how she evaluates – she also taught me a lot in the process! She explained how to transform forgotten items in your jewelry box into more! An excellent professional with a wealth of knowledge and true transparency. Kind and delightful- I appreciate the evaluation experience and zero pressure to make any decisions. I highly recommend working with Xammany.Response from the ownerThanks for your feedback. robert westfall ★★★★★ Making the decision to sell your own personal jewelry can be a daunting challenge to say the least. Diamond Banc provided me with the best opportunity one could wish for.Totally Professional in every aspect of the transaction. If you’re considering selling your jewelry in the Aventura Florida area Xammany is the person you want to contact at Diamond Banc. You will be very happy you did.Response from the ownerThank you so much Robert for your trust in us. We appreciate you and will look forward to assisting anytime. Fabian Yearwood ★★★★★ I had a remarkable experience working with Xammany at Diamond Banc located in Aventura Florida. Her expertise in offering loans against diamonds and gold is truly commendable. What sets her apart is not just the excellent rates she offers but also her extensive knowledge and invaluable advice, making every interaction insightful and productive. Xammany exudes trustworthiness and professionalism, making the entire process seamless and stress-free. She ensures a comfortable environment, where you never feel pressured, and she guides you effortlessly through the process. Doing business with her has been an absolute pleasure, thanks to her expertise, trustworthiness, and dedication to ensuring a smooth experienceResponse from the ownerThank you so much Fabian. The pleasure was all mine and you are welcome to visit us in the near future needs. Roderic Duncombe ★★★★★ Diamond Banc in Aventura, Florida, under the expert leadership of director Xammany, is a standout in the diamond finance industry. Xammany’s profound knowledge about diamonds extends beyond loans to the intrinsic value of each piece, presented through eloquent and insightful explanations. Her expertise is a rarity that sets him and Diamond Banc apart.What further distinguishes Xammany is her client-centered approach. Providing bespoke solutions tailored to unique needs, she adds a personal touch to his business that is refreshing in an industry often seen as transactional. Diamond Banc and Xammany come highly recommended for their deep understanding of diamonds and their compassionate approach towards clients. They truly are a gem in the diamond finance industry.Response from the ownerThank you so much Roderic for your trust in me with Diamond Banc. It was an honor to be of your assistance. You are welcome anytime. Tristan Rondeau ★★★★★ Thank you so much Xammany for everything!! You are absolutely amazing!! From the first email to meeting in person it was the best experience. I highly recommend talking to Xammany you will not be disappointed. I can’t wait to see you again Aimee MarxResponse from the ownerThank you so much for your trust in me. It was a pleasure to assisted you. You are welcome anytime. Aimee Marx ★★★★★ This was the best experience ever!! Xammany is absolutely amazing!! She is so knowledgeable. So sweet and taught me so much. I wouldn’t go anywhere else to sell jewelry. I highly recommend Diamond Banc. Thank you so so much Xammany you are truly the BEST!!!!!Response from the ownerThank you so much Aimee. I am blessed to have many wonderful clients like you. You are always welcome Aimee. Mariela Cervera ★★★★★ Response from the ownerThank you for your 5-star review! Mariela Mercado ★★★★★ This is an Amazing Business, Xammany with Diamond Banc Aventura is a pro in her field to the moment we talked on the phone the guidance reassurance and the way she treats you more than a friend by how she walks you to the office im very greatful for her and will only manage Business exclusively with Xammany in Diamond Banc excellent service above my expectations fast accurate and more than anyone in the jewelry field no competition THEY ARE THE BEST.Response from the ownerThank you so much Mariela. You’re far too kind and it was a pleasure to personally assisted you and your sweet daughter too. You’re always welcome anytime. Sabiha King ★★★★★ Response from the ownerThank you for your 5-star review! Carolina Villa ★★★★★ I had a great experience with Xammany ! I’m not knowledgeable about the business or the process of buying and selling jewelry, but thanks to meeting with Xammany I was able to understand much better how it all works. I’m very grateful for her impeccable service, sincerity and the offer she gave me. I will always recommend her to anyone looking to sell or buy their jewelry.Response from the ownerThank you so much Carolina. It was a pleasure to personally assisted you. misty alston ★★★★★ Response from the ownerThank you for your 5-star review! Sheena Lewis ★★★★★ Great experience and great serviceResponse from the ownerThank you for your 5-star review! Regjna Deluca ★★★★★ Response from the ownerThank you for your 5-star review! Simon ★★★★★ Xammany is very professional easy to deal with A++++++Response from the ownerThanks for your feedback. Gregory Rosa ★★★★★ I went to Dimond banc today and was I Great experience, my wife and I meet with Xammany our banker and she made us feel comfortable with the loan process ☺️, can’t wait to tell friends and family where to go when they are in need. Great company 👌 the whole process safe and easy.Response from the ownerThank you for your trust and allowing me to personally assisted you and your lovely wife. Cherise Mullins ★★★★☆ Very kind and knowledgable!Response from the ownerThank you for your kind words and feedback, Cherise! We appreciate your recognition of our team’s knowledge and kindness.
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Amazing experience. Xammany gave me an appointment on a Saturday which is a day that they are not open, and was very professional and helpful with me getting a loan. I definitely recommend this place to anybody that is trying to sell or take out a loan. Thank you so much, Xammany!
Diamond Banc of Aventura is THE go-to destination to sell or borrow against your fine jewelry and luxury watches! The manager is an expert buyer, super knowledgeable, and professional. You’ll definitely get the deal here!
Located on the 11th Floor of the Forum Aventura building, just across the renowned Aventura Mall, Diamond Banc of Aventura provides a discreet and secure environment for clients looking to meet with our jewelry and watch experts. Upon arrival, check in with the receptionist at the front desk, who will then direct you up to our suite.
Diamond Banc in Aventura offers a range of services for clients looking to sell their luxury assets, including gold, diamonds, and luxury watches. As the top jewelry buyer and equity lender in Aventura and the surrounding areas, Diamond Banc takes pride in offering clients a simple, transparent, and hassle-free selling experience.
Why Choose Diamond Banc of Aventura, FL?
Diamond Banc operates nationwide to provide consumers with an unrivaled menu of options to access the liquidity their fine jewelry and watches possess, via immediate sale, Jewelry Equity Loan, or consignment sale. Our firm operates in a branded, modern fashion. Diamond Banc’s office in Aventura was opened to service a discriminating and affluent clientele in a prompt and confidential manner. Our Aventura location is positioned to routinely work with clients from Bal Harbour, Coconut Grove, Aventura, North Miami, and North Miami Beach.
We provide consultations to clients who are considering selling, consigning or borrowing against their important jewelry. We are the premier diamond buyers, Rolex buyers, and jewelry buyers in Aventura, Bal Harbour, and Coconut Grove. Our market directors are experts located 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. Our jewelry-secured loans are night and day different from when a person pawns jewelry.
Diamond Banc of Aventura is an extension of our luxury Diamond Banc brand, which has locations in premier cities across the nation. This ensures you receive the highest possible value assessment for your items in a confidential and polished environment. Our expert jewelry & Rolex buyers in Aventura will provide you with an accurate evaluation and financial solution that is tailored to your specific needs and desires. We offer discretion when selling their jewelry—we offer private appointments at our offices in Coral Gables & Aventura to ensure confidentiality during each sale, consignment, or loan transaction. Our directors provide every client with individualized attention, and industry-leading offers.
The Best Gold Buyer in Aventura
For clients looking to sell their gold, Diamond Banc purchases a variety of gold items, including unworn pieces, broken jewelry, scrap gold, dental gold, and more. With a longstanding partnership with some of the largest refiners in the country, Diamond Banc can offer the highest payouts for unwanted gold items. Clients can receive immediate, hassle-free funding upon accepting an offer.
Aventura’s #1 Diamond Buyer
Diamond Banc also specializes in buying diamond jewelry, including loose diamonds, diamond engagement rings, and other high-value diamond jewelry items. The team of diamond-buying experts assesses the value-adding elements of each diamond and provides an accurate market value, regardless of whether the diamond is certified or not. Diamond Banc offers a range of liquidity options, including an immediate cash purchase, consignment services, and VIP Seller’s Agent Service for high-value items.
Rolex & Luxury Watch Buyer in Aventura
As a top Rolex watch buyer in Aventura and Miami, Diamond Banc provides clients with top value and exceptional service for their luxury timepieces. The team is highly skilled in evaluating all factors that contribute to the value of each timepiece, including model, age, condition, and rarity. With a network of Diamond Banc locations across the country, the team stays up-to-date on the latest market trends for Rolex watches and offers the highest value possible for all models.
Clients looking to sell other luxury timepieces from top brands such as Patek Philippe, Audemars Piguet, and more can also turn to Diamond Banc. With extensive expertise in the luxury watch market, Diamond Banc provides clients with top value and exceptional service for their timepieces.
Loans Secured By Your Jewelry
Collateralized loans are a popular option for those seeking immediate funding while retaining ownership of their valuable jewelry. At Diamond Banc of Aventura, we specialize in providing collateralized loans secured by diamonds, gold, luxury watches, and other high-value fine jewelry items. Our lending process is simple, secure, and confidential, with pro-consumer loan terms that can be tailored to your preferences and situation.
We are the nation’s leader in providing collateralized loans, offering loans secured by one item or entire collections. Our loan values are the highest in the industry, and our borrowing costs are the lowest in all of Miami. Our team of experts is dedicated to providing personalized service and helping clients magnify the fiscal power of their jewelry.
Our clients have the option to redeem their collateral under favorable repayment terms, and generally receive the same amount of proceeds as they would by selling outright. We routinely loan clients up to $350k+ and our loan terms can be adjusted to suit your specific needs. Receive the same amount of proceeds as if you sold your item, but maintain ownership with our jewelry Equity Loans in Aventura, Bal Harbour, and Coconut Grove.
Diamond Banc of Miami, Aventura Branch
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.
We are trusted by people who want discretion when selling their jewelry—we offer private appointments at our offices in Coral Gables & Aventura to ensure confidentiality during each sale. Our staff is trained to provide every client with individualized attention so we can obtain the most accurate evaluation of your item’s value and help you understand how this reflects its market value and resale potential. As a result, we can provide you with an array of liquidity options based on the funding you are seeking to secure from your precious metals, diamonds, and luxury watches while also providing you with peace of mind that each transaction is simple and secure.
Diamond Banc of Aventura proudly serves clients West Island Blvd, Biscayne Blvd, Turnberry Way, City Center, East Island Blvd, Golden Beach, Point East Drive, Country Club Estates, Yacht Club, Aventura Central Island, Aventura Mall, North Island, Prive Island, South Island, Waterway Village, Marina Palms Yacht Club, Aventura Estates, Echo Condos, Mystic Point, The Peninsula Aventura, & William’s Island.
