Man placing a cognac diamond solitaire engagement ring with pavé band onto a woman's finger at golden hour — Brownstone Collection by Black Pearl of Queens

New — The Brownstone Collection

Natural Cognac & Champagne Diamonds

Colored by the earth. Built for New York. Natural fancy color diamonds set in solid 14K gold, handcrafted in NYC.

Shop The Brownstone Collection

New — The Brownstone Collection

Natural cognac & champagne diamonds. Colored by the earth.

Our premium natural diamond tier. Warm amber and golden-brown stones set in solid 14K gold and platinum, handcrafted in New York City. Made to order.

Handcrafted in New York City · Solid 14K Gold · Natural Cognac Diamonds · Free Insured Shipping · Lifetime Warranty · Made to Order · The Brownstone Collection · Engagement Rings · Wedding Bands · Signet Rings · Champagne Diamonds ·

Loose natural cognac diamond C6 deep amber color

Natural Fancy Color Diamonds

What are cognac & champagne diamonds?

Cognac and champagne diamonds are natural fancy color diamonds graded on the Argyle C1–C7 scale. The warm amber-brown color is formed over billions of years through geological pressure — not treatment, not enhancement, not a lab. It cannot be replicated.

Champagne diamonds (C1–C4) range from pale gold to deep honey. Cognac diamonds (C5–C7) are deeper amber-orange. Every stone is one of a kind.

NaturalColor formed by geological pressure over billions of years
Argyle ScaleGraded C1–C7 by the Argyle Diamond Mine
FiniteArgyle Mine closed 2020 — stones not being replaced
10 MohsSame hardness as colorless diamonds
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Engagement Rings · New York City

The cognac diamond engagement ring for someone who never wanted what everyone else has

A cognac diamond engagement ring is not a trend. It is a choice. The warm amber-orange stone reads completely differently from any white diamond — more personal, more distinctive, more alive in warm gold light.

Every Brownstone engagement ring is made to order in our New York City workshop. You choose the stone grade (C1–C7), the metal (14K yellow, white, rose, brown gold, or platinum), and the size. Production takes 2–3 weeks.

◇ Natural cognac & champagne diamonds, not lab-grown
◇ Solid 14K gold or platinum — no plating
◇ Made to order in your exact ring size
◇ Handcrafted in New York City
◇ Free insured shipping + lifetime warranty
◇ $595–$3,495 — real stones, real gold
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Two hands cognac diamond engagement ring NYC brownstone streetOval cognac diamond solitaire engagement ring 14K yellow gold
NYC brownstone rooftops golden hour

Queens, New York City

Fine jewelry handcrafted in New York City — not a factory, not a warehouse

Black Pearl of Queens is a NYC jewelry brand built on a single standard: every piece that ships is one we would wear ourselves. Founder Dimitri has been working with precious metals and stones for over a decade. The workshop is in Queens. The gold is solid. The diamonds are real.

We don’t hold inventory. Every piece is made to order in your exact size and metal choice. 2–3 weeks. Ships free, fully insured.

14KSolid gold — not gold-filled, not plated
NYCMade to order in our Queens workshop
2–3 wksProduction time from order to ship
Lifetime warranty on every piece
Our story →

Five metals. Which is right for your stone?

Every Brownstone piece is available in all five metals. The stone reads differently in each one — here’s exactly how.

Most popular

14K Yellow Gold

Classic warm gold. Amplifies the stone’s amber tone. Works with both cognac and champagne grades.

Most romantic

14K Rose Gold

Soft pink warmth. Best with champagne diamonds (C1–C4) where metal and stone share the same warm-pink tone.

Most striking

14K White Gold

Cool contrast. The warm stone reads bolder and more saturated against the lighter metal.

Most formal

Platinum

Premium contrast. Heavier and cooler than white gold — makes deep cognac grades appear richer and more saturated.

Why Black Pearl of Queens

Natural diamonds, not lab-grown

The Brownstone Collection uses exclusively natural cognac and champagne diamonds. Geological color formed over billions of years. This is our premium tier.

Solid gold — no exceptions

Every piece is cast in solid 14K or platinum. No gold-filled. No plating. Built for decades of daily wear.

Made to order in your size

Every piece is made specifically for you in your exact size and metal choice. 2–3 weeks. Ships free, fully insured.

NYC workshop, not a dropshipper

Founder Dimitri sets every stone by hand in Queens, New York City. You are buying directly from the maker.

Lifetime warranty

Every Brownstone piece is backed by our lifetime warranty against manufacturing defects. No time limit.

Talk to a real jeweler

Call or text us at 929-806-1502. You will talk to the person who makes your piece.

Frequently asked questions

What are cognac diamonds?

Cognac diamonds are natural fancy color diamonds in the C5–C7 range of the Argyle color scale. The deep amber-orange color is formed by structural graining inside the crystal during geological formation over billions of years. It is a natural characteristic, not a treatment.

What is the difference between cognac and champagne diamonds?

Both are natural brown diamonds on the Argyle C1–C7 scale. Champagne (C1–C4) ranges from pale gold to deep honey. Cognac (C5–C7) is deeper amber-orange. Champagne pairs best with rose and yellow gold. Cognac pairs with yellow gold, white gold, or platinum.

Are cognac diamonds lab-grown or natural?

Every diamond in the Brownstone Collection is a natural diamond. The complex warm color comes from physical crystal structure that cannot be replicated in a lab.

Where is Black Pearl of Queens jewelry made?

Every piece is handcrafted in our workshop in Queens, New York City. Made to order in your size and metal after you place your order.

How long does production take?

2–3 weeks from order confirmation. All pieces ship free, fully insured, in our signature gift box. For rush orders contact 929-806-1502.

What metals do you offer?

Five metals: 14K brown gold (our signature Brownstone alloy), 14K yellow gold, 14K white gold, 14K rose gold, and platinum. All solid — no plating, no gold-fill.

What is the price range for the Brownstone Collection?

$595 to $3,495 depending on piece type, stone grade, and metal. Real natural stones and solid gold throughout.

Do you offer returns?

14 days from delivery for non-customized pieces. Made-to-order pieces sized to specification are final sale. Contact info@blackpearlofqueens.com or 929-806-1502.

Dimitrios koukoulis, designer behind Black Pearl of Queens

Meet the Designer

Founder and master jeweler Dimitri designs and crafts each piece in New York, where precision meets purpose. His work is rooted in craftsmanship — solid gold, conflict-free stones, and an uncompromising attention to detail. The result is jewelry built to carry meaning, and to last for generations.

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