Skip to product information
Front view of 1 carat cushion cut lab grown diamond engagement ring in 14K yellow gold

Cushion Cut Solitaire Engagement Ring in 14K Gold – 1ct Lab-Grown Diamond

One cushion cut diamond. Four prongs. A plain gold band. Soft corners, brilliant fire, and nothing between you and the stone. This is the Madison Cushion.

$1,800.00 USD
Shipping calculated at checkout.

Images may appear slightly enlarged to highlight fine details. Please refer to product specifications for exact dimensions.

Metal14K Yellow Gold

Proccesing 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 recieve you order.

Shipping

We ship priority with no additional cost, fully insured, and signature upon arrival is required.

Product Description

Why You'll Love It

The Cushion Cut Solitaire Engagement Ring is the most romantic solitaire in our bridal collection — a 1ct cushion-cut lab-grown diamond set in a classic four-prong head on a plain polished band in solid 14K gold. The cushion cut is the oldest brilliant cut in fine jewelry: a square or slightly rectangular shape with rounded corners and a deep pavilion of brilliant facets that produces a soft, warm light return unlike any other cut. Where the princess cut is sharp and geometric, the cushion cut is soft and romantic — a stone that glows rather than flashes, that catches light in broad, warm pools rather than sharp, concentrated points. At 1ct, the cushion cut has a face-up area that appears larger than a round brilliant of the same weight, and its rounded corners make it comfortable to wear without the corner-chipping risk of a square cut. The plain band — no pavé, no milgrain, no engraving — keeps the focus entirely on the cushion diamond, making the stone the sole visual statement of the ring.

Stone Details

  • Center stone: 1ct cushion-cut lab-grown diamond
  • Setting: Four-prong head — one prong at each rounded corner, holding the stone securely while maximizing light exposure across the full face
  • Diamond: Lab-grown, colorless, eye-clean
  • Conflict-free, ethically sourced

Design Details

  • Center stone: 1ct cushion cut lab diamond, four-prong set
  • Band: Plain polished shank — no pavé, no milgrain, no engraving
  • Profile: Low cathedral — the band rises gently from the shank to the setting, elevating the center stone above the finger
  • Inner shank: Comfort-fit, slightly rounded
  • Available in: 14K Yellow Gold, 14K White Gold, 14K Rose Gold

The Cushion Cut

The cushion cut — sometimes called the "pillow cut" — is a square or slightly rectangular brilliant cut with rounded corners and a deep, open culet that produces a distinctive light return pattern: broad, soft flashes of white light and color that appear to glow from within the stone rather than scatter across its surface. The cushion cut was the dominant diamond shape for most of the 19th century, worn by royalty and aristocracy across Europe, and its enduring appeal lies in its combination of romantic softness and brilliant fire — a cut that is simultaneously antique in character and completely contemporary in execution. In the Madison Cushion Solitaire, the 1ct cushion cut is oriented with its corners at the cardinal positions — north, south, east, west — so that the rounded corners of the stone are held by the four prongs and the full square face of the cushion is open to light from every angle.

The Four-Prong Setting

The four-prong setting of the Cushion Cut Solitaire places one prong at each rounded corner of the cushion diamond — the most natural and most secure way to hold a cushion cut. The corner prongs protect the four rounded corners of the cushion while leaving the full face of the diamond open to light, maximizing the broad, warm light return that makes the cushion cut distinctive. The prongs are slim and tapered, minimizing their visual presence and allowing the cushion diamond to read as the dominant element of the ring.

The Plain Band

The plain polished band of the Cushion Cut Solitaire is a deliberate design choice — a band that disappears beneath the center stone, leaving nothing between the cushion diamond and the finger but the four slim corner prongs that hold it. The plain band pairs naturally with any wedding band — plain gold, diamond eternity, or pavé — without creating visual conflict, and its comfort-fit inner shank makes the ring comfortable for all-day wear.

Why Lab-Grown Diamond?

Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds — the same carbon crystal structure, the same hardness (10 on the Mohs scale), the same refractive index, the same fire and brilliance. A 1ct lab-grown cushion cut delivers the same soft, warm light return as a 1ct mined cushion cut — the same rounded corners, the same deep pavilion, the same broad flashes of white light and color — at a price point that makes the 1ct size accessible without compromise on cut quality or color.

Cushion vs. Princess vs. Oval

The cushion cut is the romantic choice — soft corners, warm glow, antique character. The princess cut is the geometric choice — sharp corners, concentrated fire, modern precision. The oval is the elongating choice — finger-lengthening silhouette, brilliant scintillation, contemporary elegance. All three are available in our solitaire collection; the cushion is the one for those who want their diamond to feel warm, personal, and timeless.

Craftsmanship Specs

  • Metal: Solid 14K Gold (Yellow, White, or Rose)
  • Center stone: 1ct cushion-cut lab-grown diamond, four-prong corner set
  • Band: Plain polished shank, comfort-fit inner profile
  • Profile: Low cathedral setting
  • Handcrafted in our Queens, NYC workshop

Styling Notes

The Cushion Cut Solitaire pairs naturally with a plain gold band or a slim diamond eternity band. Its plain band width sits flush against most wedding bands, and its low cathedral profile accommodates a flat-profile band beside it. In yellow gold, the warm metal deepens the cushion cut's characteristic warm glow into something rich and editorial. In white gold, the cool metal creates a clean contrast that makes the cushion appear more brilliant and more icy. In rose gold, the warm blush metal gives the cushion cut a romantic warmth that is completely in keeping with the stone's antique character.

Gifting & Occasions

The Cushion Cut Solitaire Engagement Ring is the ideal proposal ring for those who value romantic softness, antique character, and the diamond as the sole statement. Its plain band and classic four-prong setting make it appropriate for any style, and its 1ct cushion cut delivers the visual warmth of a statement ring in the most enduring and most personal solitaire format we make.

Our Story

In our Queens atelier, the Madison Cushion Solitaire was designed around the conviction that the most beautiful engagement ring is the one that makes the diamond feel personal. Named for Madison Avenue — where the great jewelry houses of New York have always lived — the Madison Cushion is a ring that carries the character of the cushion cut: soft, warm, brilliant, and completely its own.

What's Included

  • Cushion Cut Solitaire Engagement Ring in your chosen metal
  • Black Pearl of Queens signature gift box
  • Care card
  • Ready-to-gift packaging

Production & Shipping

Made to order in 7–10 business days. Complimentary insured shipping on all U.S. orders. International shipping available.


Handcrafted in New York City | Lab-Grown Diamonds | Solid 14K Gold | Lifetime Warranty

Product Specifications

SKU: BPQ-MAD-CS-1

Materials

Metal: Gold
Hypoallergenic: Skin-Safe, Hypoallergenic
Origin: New York
Packaging: Pouch Bag + Polishing Cloth
Warranty: Lifetime against manufacturing defects

Stone Details

Stone Type: Lab Grown Diamond
Certificate: IGI Certified
Shape: Cushion
Clarity: VS
Carat: 1.0ct
Setting: Round Prong

Ring Details

Band Width: 2.2mm
Band Thickness: Regular
Size Range: 4-9 US – For other sizes please contact us.
Fit: Comfort Fit
Profile: Low Dome

You may also Love

Crafted in New York

Every BPQ piece begins as a custom design developed in our New York studio. Each ring is digitally modeled, then crafted in solid 14K gold using high-precision casting and finished by hand - polished, refined, and stone-set for lasting durability.

IGI diamond certiicate

Certificate of Authenticity

Certified Lab Grown Diamonds

Every diamond we use is independently IGI-certified for quality, authenticity, and brilliance.

You get full transparency, real grading, and a stone that’s guaranteed to shine for a lifetime.

Frequently asked questions

Is this Cushion Cut Solitaire Engagement Ring in 14K Gold – 1ct Lab-Grown Diamond a certified lab-grown diamond?

Yes, all our diamonds 1ct+ are certified lab-grown, ethically sourced, and identical in quality to mined diamonds.

How long does production take?

Each ring is handcrafted to order in our NYC workshop. Production takes 7–10 business days.

Can I customize the metal or carat size?

Yes, contact us for custom sizing, metal options (14K yellow, white, or rose gold), and carat upgrades.

What does the lifetime warranty cover?

All pieces include a lifetime warranty covering craftsmanship defects. We also offer free resizing within the first year.

How do I find my ring size?

Use our [ring size guide] to measure at home, or visit our NYC workshop for a complimentary fitting.

Pears well with

Free Shipping Within US

Free, fully insured U.S. shipping — secure and signature protected.

make me a diamond outlined for

Certified Diamonds

Each stone is accompanied by a verified IGI grading report, detailing its cut, color, clarity, and carat. Independent certification ensures the diamond you receive meets strict global standards.

Lifetime Warranty

Your jewelry is covered for workmanship for life against manufacturing defects, quality you can trust.