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Sell Your Diamonds to Trusted Buyers for Fast Cash

Qollateral is a national leader in diamond purchases. Sell to our experienced team of diamond buyers and get the highest price for your loose diamonds and diamond jewelry, plus the expertise, security, and competitive offers you expect when you sell something so valuable.

Get An Offer To Sell Your Luxury Assets Within 30 Minutes.

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    Trusted Diamond Buyers Offering a Stress-Free Selling Experience

    We’ve made it simple and stress-free to sell your diamonds from anywhere, whether that’s inside our New York City office or by mail, using a free, fully insured shipping label. Your diamonds and diamond jewelry will be appraised in a confidential valuation by knowledgeable buyers, with same-day offers and the option to get paid instantly via cash, check, or money order.

    • Diamond engagement rings and wedding bands
    • Certified and non-certified diamonds
    • White diamonds
    • Colored diamonds
    • Designer diamond jewelry
    • Heirloom and second-hand pieces
    • Other luxury gemstones like sapphires, emeralds, and rubies
    • And more…
    Trusted diamond buyers offering top dollar for your stones

    Selling a Diamond Has Never
    Been So Simple

    From a single loose stone to an entire heirloom collection, selling diamonds with Qollateral is the quickest way to turn unwanted assets into a considerable payday. Our buyers will walk you through every step of the process, offering complete transparency from start to finish so you know exactly what your diamonds are worth and why.

    With Qollateral, diamond sellers receive:

    • Competitive valuations
    • Private, no-obligation consultations
    • Nationwide service
    • No upfront fees
    • Industry-leading trust and integrity
    • Instant payments

    We’re passionate about diamonds. Get a fair and highly competitive offer when you sell diamonds to our buyers, plus the added perk of being able to sell right from home. Book a consultation today to start the process.

    Sell your diamond jewelry to trusted luxury buyers at Qollateral

    How to Sell Diamonds with Qollateral

    We’ll buy your diamonds same-day in person or send you a free shipping label so you can send your assets our way. If you choose the latter option, your diamonds will be fully insured in transit by Lloyd’s of London and securely opened under video surveillance at our office in New York’s International Gem Tower.

    To make sure you get the best price for your diamonds, please supply any supporting documentation that speaks to their value, such as purchase records, auction records, and/or previous appraisals. Our buyers will evaluate all available documents and do a full assessment of your diamond(s) or diamond jewelry, then provide you with an on-the-spot offer and same-day payment.

    Learn how to sell your diamonds for maximum value

    Offering Top-Dollar for Your Diamonds

    Want to know how much your diamonds are worth? Book a free valuation today and connect with qualified buyers who understand the true market value of diamonds and other precious stones.

    Selling a diamond online has never been easier

    How It Works

    How does the diamond selling process work?
    How much money can I get for my diamond?
    Is it better to sell or pawn a diamond?
    How soon do I get paid after selling my diamond?
    What happens if I don’t accept the offer?
    How is my diamond stored and protected?

    Proudly offering the highest value collateral loans to clients in NYC and across the nation

    Same-Day Diamond Loans

    If you want to turn diamonds into cash but don’t want to give up ownership of the stones you love, ask about our same-day diamond loans. Qollateral offers nationwide collateral loans and the highest valuations in the industry, meaning you can keep your diamonds and get paid for them, too.

    Get An Offer
    Selling your diamonds online has never been easier

    Google Reviews

    EXCELLENT
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Based on 179 reviews
    Mark Bletnitsky
    Google star 1Google star 2Google star 3Google star 4Google star 5
    From the initial appraisal to the final redemption the process was seamless. Qollateral delivered exactly what they promised and earned my trust.
    amos funk
    Google star 1Google star 2Google star 3Google star 4Google star 5
    I used a Cartier watch and a diamond bracelet as collateral. The valuation was fair and the funds were available much faster than I expected.
    Alexandros Stavropoulos
    Google star 1Google star 2Google star 3Google star 4Google star 5
    I had an excellent experience with Qollateral from beginning to end. I was initially hesitant about getting a loan against a luxury asset, but their team made me feel comfortable by clearly explaining the process and answering all my questions. Everything was professional, discreet, and straightforward. Communication was excellent, and there were no surprises regarding the loan terms or repayment options. I also appreciated how respectfully and patiently the team treated me throughout the process. Qollateral allowed me to access funds without selling something I wanted to keep, which made a big difference. Overall, the experience was efficient and pleasant. I would absolutely recommend Qollateral to anyone seeking a professional and discreet loan against valuable assets.
    Tuan Nguyen
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Their appraisal process was straightforward and transparent. I felt comfortable every step of the way and would gladly use their services again.
    Zach Downey
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Qollateral helped me unlock cash from my assets without having to sell them. The flexibility of the loan allowed me to keep ownership of pieces that are important to me.
    EDDIE CUZZ PEJCINOVIC.
    Google star 1Google star 2Google star 3Google star 4Google star 5
    WHAT A HONEST SO PROFESSIONAL ,CARING STAFF ASKS U EASILY WHAT U WANT TO DO COLLATERAL LOAN OR TO SELL ? SO EASILY EXPLAINED ,IF U NEED SOME CASH FOR BILLS LIKE ME I TOOK A LOAN AND IM VERY HAPPY AND IN A FEW MONTHS ILL GET MY ITEM BACK, IM REALLY HAPPY 😊 AND ILL ALWAYS BE BACK.
    Piny Vind
    Google star 1Google star 2Google star 3Google star 4Google star 5
    The team was extremely knowledgeable about high end watches. They accurately valued my Patek Philippe and provided a loan that exceeded my expectations.
    Ariel Amir
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Qollateral treated my luxury watch collection with the care and respect it deserved. The loan process was simple and I was able to redeem my watches without any issues.
    Christina Topchu
    Google star 1Google star 2Google star 3Google star 4Google star 5
    I had a very pleasant experience with the team here at Qollateral. They made me feel very comfortable and answered all the questions I had. The office felt luxury and private in the GIA building with lots of security to get in, which made me feel comfortable leaving my valuables with Qollateral.
    James B
    Google star 1Google star 2Google star 3Google star 4Google star 5
    I needed quick access to capital and did not want to sell my Rolex. Qollateral gave me a fair loan offer and funded the loan the same day. The entire process was professional and discreet.
    Danny Anderson
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Took out my first loan on some Pokémon cards i refuse to sell, the process was quick and easy and had the funds in minutes, Jonathan was very patient, very happy with their service. 5/5
    Kevin Revinov
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Trustworthy, consistent and reliable team! Thank you.
    Christine D.
    Google star 1Google star 2Google star 3Google star 4Google star 5
    My experience with Qolatteral was excellent, and I highly recommend their services if you are considering securing a loan against a valuable item.
    Yuriy Babadzhanov
    Google star 1Google star 2Google star 3Google star 4Google star 5
    I compared several luxury asset lenders before choosing Qollateral. Their offer was the strongest and their customer service was exceptional from start to finish.
    Cameron Swanson
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Great experience, super fast, and Jonathan was extremely helpful for a quick loan experience on Graded Pokemon Cards
    Nata Justley
    Google star 1Google star 2Google star 3Google star 4Google star 5
    This office is most dedicated to providing outstanding service and ensuring customer satisfaction through clear communication, transparency, and efficient solutions
    Sherif Shabaan
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Best team on 47st. Very secure and knowledgeable. Will do business again
    ExclusiveAuto
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Just had to come here and mention my fantastic experience with Qollateral. Greg was professional, responsive, and made the entire process smooth and straightforward from start to finish. Communication was excellent and everything was handled quickly and transparently. Will definitely be working with them again.
    aleksandra chernobrodskaya
    Google star 1Google star 2Google star 3Google star 4Google star 5
    I just transacted with their office with a new Chanel bag. I’m very pleased with the service and the deal I got. Thank you))
    Shivam Soni
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Had a great experience working with Qollateral. I needed some quick cash and was able to give me a $6,000 loan using a few of my graded Pokémon cards as collateral. Super easy process from start to finish. I emailed them and got a response with an offer in under 30 minutes. Went to the office the same day and had cash in hand within an hour. Everyone was professional, transparent, and easy to work with. Definitely recommend if you’re looking for a fast and straightforward way to leverage your collectibles without selling them.