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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Diamond Buyers Greenwich NYC

Diamond Buyers Greenwich NYC. 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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Diamond Buyers Greenwich NYC Today

Diamond Buyers Greenwich NYC – JS Diamonds brings over 10+ years of industry expertise and serves 2,500+ retail accounts nationwide. As trusted diamond buyers serving the Greenwich NYC area, we provide accurate, transparent, and stress-free evaluations for loose diamonds, engagement rings, estate jewelry, heirloom pieces, and luxury watches.

Operating from New York City’s renowned Diamond District, our specialists assess each diamond based on cut, color, clarity, and carat weight to ensure a fair market offer aligned with current pricing trends.

For added convenience, our virtual consultations allow Greenwich NYC clients to connect securely with our experts from anywhere while still receiving the professional guidance JS Diamonds is known for.

Ready to work with experienced Diamond Buyers Greenwich NYC clients trust?
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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 lab & 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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Customer Testimonials

Reviews That Speak for Themselves

Fast, Friendly & Fair

Sold mismatched gold earrings and a broken watch. They explained every step clearly and gave me a great price. Left feeling respected, valued, and confident in my decision.

MARCUS BENNETT

Watch & Jewelry Seller
☆☆☆☆☆

Top-Notch Quality!

Every loose diamond I’ve purchased from JS Diamonds has been exactly as described, from clarity to cut. Their reliability helps me meet client demands without stress.

WAYNE SALEM

Founder & Jewelry Specialist
☆☆☆☆☆

Truly Professional

Brought in GIA diamonds and a vintage watch. The appraisal was clear, the offer was strong, and the service felt honest, making the experience smooth and stress-free.

CARLOS HERNANDEZ

Gold & Diamond Seller
☆☆☆☆☆

My Go-To Source

From fancy-shaped stones to certified diamonds, JS Diamonds delivers with precision. Their pricing transparency and quick service have made them my trusted supplier for years.

HAILEE TRIPKE

Jewelry Sales Representative
☆☆☆☆☆

Seamless & Fair

I sold old gold chains and an estate ring. The offer was better than expected, the appraisal was clear, and payment was instant. Truly a smooth, respectful process from start to finish.

LISA GRAHAM

Gold & Jewelry Seller
☆☆☆☆☆

Sell Gold in NYC for the Best Value – Instant Cash.

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Sell Diamonds in NYC for Maximum Value—Safe, Transparent, and Trusted by Experts.

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Diamond Buyers Greenwich NYC FAQs

How do I choose reliable diamond buyers in Greenwich NYC?
Reliable diamond buyers in Greenwich NYC are licensed, insured, and known for transparent appraisals with positive customer feedback.
Do diamond buyers in Greenwich NYC purchase loose stones and jewelry?
Yes, diamond buyers in Greenwich NYC purchase both loose stones and diamond jewelry, including rings, earrings, and pendants.
How do diamond buyers in Greenwich NYC value diamonds?
Diamond buyers in Greenwich NYC use the 4 Cs—cut, color, clarity, and carat weight—alongside current market rates.
Can I sell engagement rings to diamond buyers in Greenwich NYC?
Absolutely. Diamond buyers in Greenwich NYC regularly purchase engagement rings and other bridal jewelry.
Do diamond buyers in Greenwich NYC pay immediately?
Many diamond buyers in Greenwich NYC offer same-day payments via cash or bank transfer after appraisal.

Diamond Buyers Greenwich NYC

Diamond Buyers Greenwich NYC provide professional and discreet services for loose stones, engagement rings, and fine diamond jewelry. Trusted Diamond Buyers Greenwich NYC base every appraisal on industry grading standards and current market conditions to ensure fair and competitive offers. Whether upgrading your jewelry collection or liquidating valuable assets, experienced Diamond Buyers Greenwich NYC make the process smooth, secure, and efficient. Many offer same-day transactions, delivering a confidential and rewarding experience from evaluation to payment.