Cushion - Lab Grown Diamond Jewelry

Embrace classic elegance with our cushion-cut lab grown diamond engagement rings. Featuring a soft, rounded square shape with brilliant facets, each diamond delivers timeless sparkle and sophisticated charm. Ethically sourced and expertly crafted, these rings combine lasting beauty with modern design. Perfect for proposals, anniversaries, and unforgettable milestones, cushion-cut engagement rings symbolize love, commitment, and refined style that endures for a lifetime. 💍✨

Ready to ship worldwide Ready to ship worldwide
Easy 30-day returns Easy 30-day returns
Cushion - Lab Grown Diamond Jewelry
25 products

Cushion Cut Lab Grown Diamond Engagement Rings

A cushion cut diamond has a square outline with softly rounded corners, like a pillow, and large facets that create rich, romantic sparkle. Cushion cut lab grown diamond engagement rings suit brides who love a timeless, slightly vintage look that still feels fresh. Each ring in this collection is handcrafted to order. The shape looks especially lovely surrounded by a halo of smaller diamonds.

Why choose a cushion cut lab grown diamond?

  • Romantic, vintage character – the cushion is rooted in classic jewelry and pairs naturally with halo and pavé settings.
  • Bold, fiery flashes – its larger facets throw generous flashes of light and color.
  • Gentle corners – rounded corners have no sharp points, which makes the shape practical for everyday wear on a stone that rates 10 on the Mohs scale.
  • Real diamond, kinder price – lab grown diamonds are chemically, physically and optically identical to mined diamonds but more affordable for the same size and quality.
  • Ethically grown – no mining required. Ask us about IGI certification for your center stone.

Metal, carat and setting options

Choose 925 sterling silver (plated in yellow, white or rose gold), solid 10K, 14K or 18K gold in yellow, white or rose, or platinum. Rose and yellow gold bring out the cushion's vintage charm, while platinum gives it a bright, modern edge. Price follows the metal and carat. Check your size with our ring size guide.

Each ring ships free by insured express courier in 7–15 days, with 30-day returns on eligible jewelry. Prefer a longer outline? See elongated cushion lab grown diamond rings or the cushion cut moissanite collection.

Cushion Cut Lab Grown Diamond Engagement Rings: Frequently Asked Questions

What is the difference between a cushion cut and an elongated cushion?

A classic cushion cut has a square or nearly square outline with rounded corners, while an elongated cushion is stretched into a rectangle. The classic version feels soft and balanced, and the elongated version makes the finger look longer. Both share rounded corners and lively brilliant facets.

Is a cushion cut lab grown diamond a good engagement ring choice?

Yes. It combines romantic, vintage-style sparkle with a practical shape that has no sharp corners. As a lab grown diamond, it is a real diamond rated 10 on the Mohs scale and more affordable than a mined diamond of the same size and quality.

Does a cushion cut look good with a halo?

Very much so. A halo of small diamonds follows the cushion's rounded square outline, making the center stone look larger and adding extra sparkle around it. It is one of the most classic pairings in engagement ring design, especially in white gold or platinum.

How should I clean a cushion cut ring?

Soak it in warm water with a little mild soap, then gently brush under the stone with a soft toothbrush to remove lotion and dust that dull the sparkle. Rinse and pat dry. Avoid harsh chemicals, and see our jewelry care page for more detailed tips.