Allow your jewelry to continue its story
We are fine jewelry specialists with experience spanning generations. We’ll work with you to ensure every step of your experience is straight-forward, transparent and gratifying.
Our goal is to make sure you feel taken care of, from the moment you submit a sell request to when you receive payment for your jewelry.
4 Simple Steps

Review your estimate
We’ll respond within two days with your estimate

Ship with Confidence
If you like your estimate, we’ll provide an overnight, fully insured shipping label for you to ship your jewelry. There’s still no commitment to sell

Get Paid Promptly
Accept our final offer? We’ll overnight you a check. Rather not? We’ll safely return your jewelry right away

Over the last 70 years, our family has bought and sold hundreds of pieces of fine jewelry and thousands of diamonds. We know that our reputation is the most valuable asset we have.
Your trust is paramount to us, so to ensure you feel secure throughout the process, we will provide you with a fully insured shipping label for your jewelry, at no cost or obligation to you, and open the package on camera to allow you total transparency.
If you have any questions about our process, please feel free to message Alon
directly, or call on (212) 799-7153.
Testimonials
FAQ
What we buy.
○ We aim to offer the best possible price for items from Tiffany & Co, Cartier, Bulgari, Van Cleef & Arpels, Pomellato, Buccellati, David Yurman, and much more. If your item isn’t on this list, don’t worry—simply submit an inquiry and we’ll get back to you promptly with an evaluation.
○ Yes. We purchase non-branded gold and platinum jewelry, with or without diamonds. These pieces are typically valued based on their intrinsic gold weight (by the gram) and diamond weight (by the carat), so it’s helpful to provide this information when submitting your form. We pride ourselves on offering higher payouts than many smaller local shops, ensuring you receive strong value for your pieces.
○ Yes. We specialize in branded engagement rings from Tiffany & Co., Cartier, and Harry Winston, as well as non-branded rings. For non-branded pieces, we typically only look for rings with a center diamond certified by GIA, though we review each submission individually.
○ Yes. We buy select silver jewelry from top designers such as Tiffany & Co. (including the Return to Tiffany line and many Elsa Peretti designs), as well as pieces from David Yurman and John Hardy. If you have silver items from other fine jewelry brands, feel free to submit them for review—we’ll let you know quickly if they qualify.
■ No we do not.
Selling Process
○ Most clients are paid within 2–3 days from the time they ship their items. Once your package arrives, you can expect a final quote the same or next business day, with funds sent same day or within another 1–2 business days. If you choose payment by PayPal or e-check, you’ll often receive funds the same day your package is delivered to our office.
○ Having paperwork is always helpful, especially for branded items. Certificates of authenticity, brand evaluation papers, or original receipts make it easier for us to confirm authenticity. That said, paperwork is not always required—you can still submit your items without it, and we’ll let you know if anything further is needed.
○ For GIA-certified diamonds, please provide the GIA certificate number so we can verify the certificate directly.
○ Yes. We generally have a minimum purchase amount of $500 total. If you’re selling smaller pieces that may not meet this threshold individually, you can often combine multiple items to reach the minimum. We encourage you to submit your items through our form, and we’ll review everything together to give you the best possible offer.
■ At this time, importing jewelry from outside the United States is often not practical due to recent tariffs and added costs. While we focus primarily on purchases within the U.S., you are welcome to reach out with details about your item, and we can let you know if an exception may be possible.
○ Yes. We provide you with a fully insured shipping label along with clear packing instructions. Your package is shipped via FedEx Overnight with signature required, ensuring that it arrives securely and directly to our office.
○ You are never obligated to sell. If you change your mind at any point—even after shipping your items—we will return your merchandise to you, fully insured and at no cost. Your peace of mind is our priority.
Consignment Option
○ Yes. We do accept items on a case-by-case basis. When reviewing your submission, we’ll provide you with two options if it qualifies—one quote for consignment and another for outright purchase. Please reach out if you’d like to learn more about how the consignment process works
Begin the process by telling us about your JEWELRY
Prefer to connect by phone? Alon is standing by at +1 (646) 956-5766
{formbuilder:Njg4Njk=}Our jewelry holds the stories of our most memorable moments and biggest celebrations. However, sometimes we’re ready to let that jewelry continue its story as part of someone else’s collection. When that time comes, at The Diamond Oak it’s our honor to assist you in taking the steps needed to sell your fine jewelry, including Bulgari, Cartier, David Webb, Graff, Angela Cummings, Harry Winston and Tiffany jewelry, as well as other fine non-branded jewelry.
As fine jewelry specialists with generations of experience serving jewelry lovers across the globe, we work with you to create a selling experience that is straightforward, transparent, and gratifying. If you’ve been thinking you want to sell your diamond ring or jewelry, we’re here to support and guide you.
Sell your jewelry with The Diamond Oak in our simple four-step process
Because we’re an intergenerational family with deep roots in the jewelry industry, we understand that the process of selling a beloved piece of jewelry is often rife with emotion. With that in mind, we’ve created a simple and supportive four-step process to assist our valued guests when you make the decision to sell Tiffany and other fine jewelry.
- Step one: Tell us about your jewelry. The more information you can provide when you sell a Tiffany diamond ring—or one from other fine makers like Bulgari, Cartier, David Webb, Graff or Harry Winston—the better job we can do to help you get the best value. Our online form makes it easy to fill in all the details, attach photos, and get the process started. From here, we can prompt you for further details so when you sell a diamond ring, it shines above other comparable sales items.
- Step two: Review your estimate. At The Diamond Oak, we have generations of experience in helping our clients to sell Tiffany jewelry and other fine jewelry, including non-branded items. That experience has provided us with an intuitive and expert eye towards precisely identifying the value that will attract the right buyer while giving our sellers the maximum return on their investment. We know this is the most emotional step in the sales process. That’s why we promise to respond with your estimate within two-days’ time or sooner to put your mind at ease.
- Step three: Ship with confidence. Whether you are ready to sell your Tiffany engagement ring, a Bulgari diamond, a one-of-a-kind Cartier piece, or other fine jewelry, we ensure you can ship with confidence. Once you’ve determined you’re happy with your estimate, The Diamond Oak secures overnight, fully insured shipping so you can feel safe when you sell to us. Because we respect the emotional ties our clients have to their jewelry pieces, it’s important for us to let you know at this point that should you change your mind, there is no commitment to sell.
- Step four: Prompt payment. The most rewarding step when you sell Tiffany jewelry and other fine jewelry with The Diamond Oak is Cashing your check! We send our sellers a check via trackable priority as soon as we reach a suitable estimate and receive your shipment. We pride ourselves on being trustworthy, reliable, and professional diamond merchants who get you results when you decide to let your jewelry continue its story elsewhere.
What to expect when you sell Tiffany jewelry and other fine jewelry with The Diamond Oak
At The Diamond Oak, we pride ourselves on securing great outcomes for our fellow jewelry sellers. When you sell your engagement ring or other fine jewelry and ship it to us, you typically receive your payment within four to five business days from the day of your initial shipment. We also understand that you may have questions along the way. It’s our pleasure to be available anytime during your sales process to answer any questions as they arise. We take great pride in taking care of sellers from the moment they connect with us.