Natural Diamond
Not lab-grown, not treated
Solid 14K Gold
No plating, no shortcuts
Handcrafted in NYC
Made to order in your exact size
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Cognac Diamond Solitaire Engagement Ring in 14K Brown Gold
$1,520.00 USD
Shipping calculated at checkout.
- Handcrafted in New York
- Solid 14k Gold
- Free one time Ring Resizing when you purchase from us.
- Lifetime Manufacturing Warranty
Images may appear slightly enlarged to highlight fine details. Please refer to product specifications for exact dimensions.
Processing time
Everything is made to order, and it takes 5-8 days to make each piece. After you order is ready expect 2-3 days to receive you order.
Shipping
We ship priority with no additional cost, fully insured, and signature upon arrival is required.
Product Description
Cognac Diamond Solitaire Engagement Ring in 14K Brown Gold
The only cognac diamond solitaire engagement ring set in 14K brown gold — our signature alloy, the only metal in the world developed specifically for cognac diamonds. A .40ct natural cognac diamond sits in a four-prong solitaire above a clean 1.5mm plain band, with no pavé to compete for attention — just stone, metal, and finger. Handcrafted in Queens, NYC.
The stone
The center stone is a natural cognac diamond, graded between C4 and C6 on the Argyle color scale — the deep amber-orange range where cognac diamonds show their characteristic internal fire. Cognac diamonds are formed by nitrogen and natural radiation deep in the earth over billions of years; the color is permanent, untreated, and entirely natural. No two stones are alike, and the .40ct round brilliant we set in this ring is chosen by hand for clarity, cut quality, and saturation.
The setting
A classic four-prong solitaire raises the cognac diamond off the finger on a smooth, unadorned 1.5mm plain band — the purest expression of a solitaire engagement ring. No pavé, no side stones, no distractions. The band is the slimmest we offer, designed to disappear against the finger so the stone reads larger and the line of the ring stays delicate. Stacks effortlessly with any wedding band.
The metal
This ring is offered in five metals: our signature 14K brown gold, 14K yellow gold, 14K rose gold, 14K white gold, and platinum. 14K brown gold is the Brownstone Collection's defining alloy — an earthy amber-brown that sits between yellow and rose gold. It's the only metal in the world developed specifically for cognac diamonds, designed so the stone and metal merge into one continuous warm tone instead of contrasting. All gold options are solid 14K throughout, nickel-free, and never plated or gold-filled.
Handcrafted in New York City
Every Brownstone piece is made to order by founder Dimitri in our Queens, NYC workshop. Production runs 2–3 weeks from order confirmation. All orders ship free and fully insured, backed by a lifetime warranty against manufacturing defects. Non-customized pieces are returnable within 14 days. Questions before you order? Call 929-806-1502 or email info@blackpearlofqueens.com.
Product Specifications
SKU:
BPQ-BSER-SO-NG-BRG-4
Materials
Metal:
Solid 14K Gold (Yellow, White, or Rose)
Hypoallergenic:
Skin-Safe, Hypoallergenic
Origin:
New York
Packaging:
Pouch Bag + Polishing Cloth
Warranty:
Lifetime against manufacturing defects
Stone Details
Stone Type:
Natural Cognac Diamond
Shape:
Round
Carat:
0.4ct
Ring Details
Band Width:
1.5mm
Size Range:
4-9 US – For other sizes please contact us.
Arrives gift-ready
The piece you ordered. The moment it arrives.
Every Brownstone piece ships in our signature cream suede pouch, embossed with the Black Pearl of Queens mark. Polishing cloth and care card included. No extra wrapping needed — it arrives exactly as it should be given.
Signature suede pouchCream, embossed, reusable
Polishing clothFor 14K gold & platinum care
Care cardCleaning & storage instructions
Free insured shippingSignature required on delivery
What makes a Brownstone diamond different
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. Every stone is one of a kind. The color that takes billions of years to form is the color you wear every day.
The Argyle color scale — C1 to C7
Champagne diamonds (C1–C4) range from pale gold to deep honey. Cognac diamonds (C5–C7) are deeper amber-orange. Every stone is graded before setting. No two are the same shade.
14K brown gold is our signature Brownstone alloy — stone and metal become one continuous cognac tone, nothing else reads like it. Yellow gold amplifies warmth and works with every grade. White gold creates bold contrast, making cognac stones announce themselves. Rose gold and champagne diamonds share the same warm-pink frequency — soft, luminous, quietly luxurious. Platinum is the most formal and the most durable.
Frequently Asked Questions
What are cognac and champagne diamonds?
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 a lab. Every stone is unique.
Are Brownstone 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.
How do I find my ring size at home?
You can measure your ring size using a ring sizer tool or by wrapping a thin strip of paper around your finger and measuring the circumference. Best measured in the evening when fingers are at their largest. Use our ring size guide for full instructions.
Why do prices vary between ring sizes?
Ring prices vary because each size requires a different amount of precious metal. Larger sizes use more solid gold, which affects the price. All pricing is transparent at checkout.
Can I get a matching engagement ring and wedding band?
Yes — the entire Brownstone Collection is designed to stack and pair. Call or text us at 929-806-1502 to discuss a matching set. We can match stone grades, metal, and profile to create a set that works together perfectly.
Let customers speak for us
Got this for my wife who just passed her nursing boards. She wanted something to mark the moment and I found this 14K gold caduceus bracelet online. The white gold version is delicate and elegant, not costume-y at all. Ships fast from New York, arrived beautifully packaged. She hasn't taken it off since. Perfect nurse graduation gift.
Manuel
14K Gold Caduceus Charm Bracelet
Okay but this ring is so nice. It’s clean, classy, and not extra in a try
hard way
Ashley M.
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Super clean pendant
The 14K gold feels legit and has real weight, not thin at all. The diamond halo sparkles but stays classy
perfect for everyday wear or layering. Sits great on the chain and still looks brand new after constant use. Definitely a quality gold medallion and worth it.
Brianna J.
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Beautiful piece. Feels solid and well made, not delicate or flimsy. The diamonds add just enough sparkle without being too much. I wear it constantly and still get compliments.
Sofia R.
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Clean solid ring, No flash, no gimmicks.
feels right for everyday life out here
built to be worn, not babied. Comfortable, holds up, and still looks good after real use.
Exactly what I wanted.
Colt M.
Forged by Fire Men's Lab-Grown Diamond Wedding Band
Great design with a pinch of elegance and high quality with attention to detail!
Fast service and assistance.
Thank you .
Ilias
Virel Hammered Gold Band – 2mm Hand-Hammered Ring | 14K Gold & Platinum
Engangment Ring
I ordered from Dimitri my first engagement ring and he was very helpful. I highly recommend him if you need to choose the right ring for your special one.
Iraklis R.
Black Pearl of Queens
