JS Diamonds Inc. operates exclusively from its registered office in New York City, USA. We have no branches or affiliated offices in any other location. Any claims to the contrary are unauthorized.

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We Buy Diamonds, Gold, Jewelry & Watches

Fair, transparent offers on diamonds, gold, jewelry & watches.
Trusted nationwide for swift service.

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We specialize in evaluating and purchasing high-value items with honesty and precision. Whether you’re selling loose diamonds, gold bars, heirloom pieces, or watches, we ensure a smooth and rewarding process.

Diamonds

We accept natural & lab diamonds of all shapes, sizes & certifications.

SELL YOUR Diamonds

Gold

We accept gold in all forms including coins, bars & jewelry.

SELL YOUR Gold

Jewelry

We accept fine, estate & branded pieces in any condition.

SELL YOUR Jewelry

Watch

We accept luxury, vintage, & branded watches in any condition.

SELL YOUR Watch

Diamond

SELL YOUR Diamonds

Gold

SELL YOUR Gold

Jewelry

SELL YOUR Jewelry

Watch

SELL YOUR Watch

Our Seamless Process

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Share Your Item Details

Send us clear photos and any relevant documents or certificates. These details help our experts accurately and efficiently assess your piece’s authenticity, quality, and value.
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Book An Appointment

Choose a convenient date and time to meet our team in person at our NYC office. No pressure and no obligation, just an expert evaluation.
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Receive The Best Offer

Our experts assess your items in person and present a transparent, competitive offer with no hidden fees or obligations.
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Get Paid On The Spot

Once you accept the offer, receive immediate payment through a secure bank transfer — fast, safe, and hassle-free.

GET AN OFFER
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Looking To Sell?

With 10+ years of industry expertise, JS Diamonds offers a trusted, transparent way to sell diamonds, gold, jewelry and watches. We provide fair offers, respectful service and consultations available both online and in person.
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Customer Testimonials

Reviews That Speak for Themselves

Google Reviews
5.0
Based on 24 reviews
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Alexavier J
Verified Google Review

Working with Sal was a great experience. He offered us more than the value. Very helpful.

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George T
Verified Google Review

We had a really good and honest experience with JS Diamonds! Totally recommend them!

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R Lev
Verified Google Review

I had an excellent experience dealing with J.S. Diamonds. The entire process was straightforward and easy. Communication was clear and prompt throughout. Most importantly, I felt I could trust them completely, and they offered the fairest pricing I found after doing my research. I highly recommend J.S. Diamonds. Great service all around.

D
Daphne BazCoca
Verified Google Review

SIMPLY FANTASTIC! Sal & Jessica (and Lola!) provided the best customer service. In addition to being extremely knowledgeable about the market and the business they conduct, this outstanding team were more than fair when it came to buying the items I brought with me! They took the time to explain to me in a very easy, friendly way how they test for certain materials/metals, the market value of such metals, and pretty much everything I needed to know. I HIGHLY RECOMMEND you come and visit their business right in the heart of Rockefeller Center!

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Maria
Verified Google Review

Great service. The team is great, excellent customer service. High quality jewelry, great prices. Open to good negotiations. I would 100% recommend visiting them. I scheduled an appointment with them, and as soon as I got there I was taken care of. All the staff is very friendly. Regarding location, amazing building and office in great condition.

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Carol Robison
Verified Google Review

They patiently evaluated the gold and diamonds that I sold to them and paid more than a fair market price. I highly recommend making an appointment with JS Diamonds first.

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Sarina
Verified Google Review

Had a great experience selling with JS Diamonds! They were extremely knowledgeable and fair. It was a very easy process with them. Would absolutely recommend!

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Brandon Saunders
Verified Google Review

First time I met Sal and the staff they were super friendly! Gave me great information and an even better price for my chain. 100% recommend and I WILL BE BACK AS A CUSTOMER!!

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Vicki Ash
Verified Google Review

Friendly. Wonderful service and got the design spot on — exactly what I wanted.

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Juanita Mcleod
Verified Google Review

I had an excellent experience with JS DIAMONDS Inc. Sal, Jessica, and the rest of the team were respectful, professional, and made us feel completely comfortable throughout the entire process. Their attention to detail and outstanding customer service truly exceeded our expectations. We're looking forward to doing business with them again in the future and will absolutely recommend JS Diamond's Inc. to other people and businesses we know. Thank you so much for a wonderful experience.

We Buy Diamonds, Gold, Jewelry & Watches FAQs

What items can I sell to JS Diamonds Inc.?

You can sell diamonds, gold, fine jewelry, and watches. We welcome everything from designer pieces to heirlooms and broken items.

What is your “sell your diamonds” process like?

Simply send clear photos and any certification you have. Then book a virtual or in-person appointment—no obligation, just expert assessment.

Can I sell my gold items, and what types do you accept?

Yes, we buy a wide range of gold items including broken jewelry, coins, bars, antiques, and scrap.

Do you buy watches, including vintage or broken ones?

Yes—we accept watches of all kinds. Our experts evaluate authenticity, condition, and value before offering a competitive price.

Buy Diamonds, Gold, Jewelry & Watches

At JS Diamonds, we understand that selling diamonds, gold, jewelry, or watches is more than just a transaction—it’s about trust and value. Our experts carefully evaluate every piece based on quality, authenticity, and market demand, ensuring you always receive a fair and transparent offer.

With over a decade of experience, we’ve built a reputation for honesty, precision, and professionalism. Whether you’re parting with a single item or a collection, our seamless process makes selling simple, secure, and rewarding.

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