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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Sell Your Diamonds with Confidence

Fair, transparent evaluations backed by nearly a decade of industry expertise, ensuring you receive accurate valuations and a process built on trust and integrity

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Diamonds Today

With 10+ years of industry experience and 2,500+ retail accounts nationwide, JS Diamonds delivers accurate, transparent, and stress-free appraisals. Based in New York City, we evaluate everything from loose diamonds and gold bars to engagement rings, heirloom pieces & watches.

Our virtual consultations let you connect from anywhere while still receiving the trusted expertise we're known for in NYC’s diamond district.

Looking to sell your diamond with confidence?
Book a private consultation today

Our Seamless Process

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.

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.

Receive The Best Offer

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

Get Paid On The Spot

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

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What We Buy

We specialize in purchasing all types of diamonds with expert evaluations and a seamless process from start to finish.


GIA and non-certified natural diamonds

Fancy shaped & fancy colored diamonds

Melee, old cuts, broken, or mismatched stones

All shapes, colors, clarities & carats considered

Gemstones & colored stones

Why Sell To JS Diamonds Inc.

Rooted in New Yorks’ Diamond District, we provide a transparent, discreet and expert-led experience for those looking to sell diamonds, gold, fine silver jewelry and watches.

10+ YEARS OF EXPERIENCE

In the diamond trade since 2010, serving clients.

HONEST VALUATIONS

Fair, accurate offers backed by market insight.

SMOOTH SELLING PROCESS

Quick, simple steps from start to payout.

DISCREET SUPPORT

Your privacy handled with care and professionalism.

Looking To Sell?

Rooted in New York’s diamond district, we provide a discreet, transparent, and expert-led experience for those looking to sell diamonds, gold, and fine jewelry.
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JS DIAMONDS INC – Sell Gold In NYC

“NYC’s trusted gold & diamond buyer since 2010. Located in Manhattan’s Diamond District, JS Diamonds Inc. pays cash on the spot for gold, diamonds, engagement rings, wedding bands, fine jewelry & luxury watches. Walk in or book a free consultation — our certified experts evaluate your piece immediately, with no pressure and no obligation. We accept all karats of gold, GIA-certified diamonds, estate jewelry, and luxury timepieces. Same visit. Instant payment. Complete transparency. 📍 580 5th Ave Suite 523 · Mon–Fri 10AM–6PM”
PHONE NUMBER

+1-551-200-3568

EMAIL

info@jsdiamondsinc.com

ADDRESS

580 5th Ave #523, New York,
NY 10036, United States

Customer Testimonials

Reviews That Speak for Themselves

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

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

G
George T
Verified Google Review

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

R
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!

M
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.

C
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.

S
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!

B
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!!

V
Vicki Ash
Verified Google Review

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

J
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.

Diamonds FAQs

How do I sell my diamond to JS Diamonds?
Share photos of your diamond via our contact form or WhatsApp. Our expert will review and respond with a preliminary estimate. You then book an in-person appointment at our 580 5th Ave office (near Rockefeller Center) for the final evaluation and same-day payment.
Can I sell both certified and non-certified diamonds?
Yes, both certified and non-certified diamonds are accepted for purchase. Certified diamonds come with grading reports that assist in faster evaluation, but even without certificates, each diamond is carefully examined by gemologists. Non-certified stones are tested for authenticity and quality on-site, ensuring a fair offer is provided regardless of documentation.
Is an appointment mandatory to meet diamond buyers?
While appointments are not mandatory, booking one can help avoid waiting times and ensures a dedicated evaluation session. Walk-ins are always welcome, but scheduling an appointment guarantees a smooth and expedited selling experience with immediate attention from an expert.
How is the final price for my diamond calculated?
The final price is determined after assessing the diamond's 4Cs—cut, clarity, color, and carat weight. Market demand and current diamond prices also influence the offer. A detailed explanation of the valuation is provided, ensuring full transparency in how the price is arrived at.
Do diamond buyers purchase mounted diamonds in rings or other jewelry?
Yes, diamonds set in jewelry like rings, necklaces, or bracelets are accepted. The diamonds are evaluated separately from the setting, while the metal (gold, platinum, etc.) is also assessed for its resale value. Sellers receive a combined offer that accounts for both diamond and metal content.
What diamonds does JS Diamonds buy in NYC?
We buy all types: loose diamonds, engagement rings, earrings, necklaces, GIA-certified diamonds, non-certified diamonds, natural stones, all cuts including round brilliant, princess, emerald, cushion, marquise, oval, pear, and radiant.
How is the price of my diamond determined?
Our certified gemologists evaluate your diamond based on the 4Cs: carat weight, cut, clarity, and colour. We also reference real-time RapNet pricing — the industry's live diamond market index — to ensure our offer reflects actual market value.
Why is JS Diamonds a better option than a pawn shop?
Unlike pawn shops, JS Diamonds specialises exclusively in diamonds, gold, and fine jewellery. We use professional gemological equipment, reference live market pricing (RapNet), and hold memberships in GIA, JBT, and the Diamond Dealers Club — ensuring a certified, transparent valuation.
Do I need a GIA certificate to sell my diamond?
No certificate is required. We evaluate both certified and non-certified diamonds on-site using professional gemological tools. Having a GIA or IGI certificate can speed up the evaluation and may support a higher offer, but we will assess any stone fairly without documentation.
Can I sell a diamond ring or mounted diamond?
Yes. We purchase diamonds both as loose stones and as they are set in rings, earrings, necklaces, and bracelets. The diamond is evaluated separately from the metal setting. You receive a combined offer covering both the stone value and the precious metal (gold, platinum, or silver) content.
Is an appointment required to sell my diamond?
Walk-ins are welcome, but booking a private consultation ensures you receive dedicated expert attention without waiting. You can schedule online at any time. Most in-person evaluations take 20–30 minutes from arrival to payment offer.

Diamonds

At JS Diamonds, we make selling your diamonds simple, transparent, and rewarding. Whether you own loose diamonds, engagement rings, diamond earrings, or any other diamond-studded jewelry, our experts ensure you receive the best possible value. Our certified gemologists carefully examine the 4Cs — cut, color, clarity, and carat weight — to provide you with a fair and accurate price. Unlike traditional jewelry stores, we specialize in buying diamonds directly, which allows us to offer more competitive rates and instant payments. From round brilliant cuts to fancy shapes such as princess, emerald, cushion, or marquise, we accept all types of diamonds, whether certified or non-certified. If you’ve inherited a diamond, are upgrading your jewelry, or simply want to liquidate your assets, JS Diamonds offers a secure and professional way to sell. With years of trust and expertise in the diamond industry, we pride ourselves on honesty, customer satisfaction, and seamless transactions. Turn your diamonds into cash with complete peace of mind — only at JS Diamonds.