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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Loose Diamonds, Ethically Sourced

Explore GIA or IGI certified natural and lab-grown diamonds
in all shapes, sizes , colors and clarity.

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A diamond should radiate brilliance, embody passion, and reflect the essence of your lifelong commitment. It’s more than a stone, it’s a source of pride, a memory you’re eager to share, and a reflection of your values.

At JS Diamonds, we offer ethically sourced, GIA or IGI certified natural and lab-grown diamonds trusted by 2,500+ retailers nationwide.

Looking to buy loose diamonds?
Give us a call today.

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Our Diamond Collection

JS Diamonds offers GIA or IGI certified natural and lab-grown diamonds, sourced directly from trusted Indian manufacturers for top quality and value.

GIA, IGI and non-certified lab & natural diamonds

Fancy shaped & fancy colored diamonds

Melee, old cuts, matched pair & layouts available
All shapes, colors, clarities & carats considered
Gemstones & colored stones

Who We Serve

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RETAIL JEWELERS

Count on us for reliable inventory and fair pricing.

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PRIVATE CLIENTS

Discreet, high-value purchases tailored to your needs.
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BULK BUYERS

Flexible quantities with competitive sourcing support.

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CUSTOM DESIGNERS

Unique cuts made to match your vision.

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PAWN SELLERS

Honest evaluations and quick, fair offers.

Why Choose JS Diamonds

Backed by 10+ years of industry experience, JS Diamonds offers expert, discreet service for buying or selling diamonds, jewelry, and gold.

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Global Diamond Expertise Since 2010

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Fair offers based on real market data

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For individuals, businesses, and collectors

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Secure, Private Process

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Looking to Buy Diamonds?

With over a decade of expertise, JS Diamonds offers GIA-certified natural and lab-grown diamonds, directly sourced for quality and value, paired with personalized service and honest guidance every step of the way.
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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.

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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.

Loose Diamonds FAQs

What types of loose diamonds do JS Diamonds offer?

We offer both natural and lab-grown loose diamonds, all GIA or IGI certified for guaranteed quality and peace of mind.

What color and clarity grades are available for Loose diamonds?

Our collection features top-tier diamonds—ranging in color from D to F and clarity of VVS+—ideal for those seeking brilliance and purity.

How large of diamonds can I purchase?

Choose from a wide spectrum—from elegant 1 carat stones to bold 10 carat diamonds—available in various shapes and sizes.

How can I get started with purchasing loose diamonds?

Book a consultation with our knowledgeable team to explore options that suit your vision and budget—let’s craft something extraordinary.

Read More About Loose Diamonds

At JS Diamonds, we specialize in offering a wide range of loose diamonds to suit every need, from timeless natural stones to modern lab-grown options. Our inventory includes various shapes, sizes, colors, and clarity grades, all carefully selected to meet the highest standards. Whether you’re looking for certified diamonds from trusted labs like GIA or IGI, or unique fancy cuts, matched pairs, and layout sets, we ensure that each stone reflects exceptional quality and value. Choosing loose diamonds from JS Diamonds gives you the flexibility to create custom jewelry or expand your retail collection with confidence. With over a decade of industry expertise, we pride ourselves on ethical sourcing, transparent pricing, and discreet service tailored to retailers, bulk buyers, private clients, and designers. Every purchase is backed by a smooth, professional process, ensuring you receive not only a diamond, but also a trusted partnership