Cushion Lab-Grown Diamond Rings

Discover our cushion-cut lab-grown diamond rings, offering a perfect blend of vintage charm and modern elegance. These timeless engagement rings feature soft, rounded edges and a brilliant sparkle. Crafted with sustainable diamonds, they are ideal for any special occasion. Shop now for classic beauty.

Filters

Sort by:

67 products

1.20ct Cushion Lab Diamond Basket Solitaire Ring | Pavé Setting | IGI Certified | Custom Gold
1.50ct Cushion Lab Diamond Solitaire Engagement Ring | IGI Certified | Custom Gold Ring
1.70ct Cushion Lab Grown Diamond Halo Engagement Ring | Cathedral Setting | IGI Certified
1.70tcw Cushion Lab Grown Diamond Engagement Ring | Halo Cathedral | IGI Certified | Custom Gold
1.85tcw Fancy Cushion Lab Grown Diamond Engagement Ring | Hidden Halo | Fancy Yellow | IGI Certified | VVS–VS Clarity | Yellow Gold
2.00ct Cushion Lab Grown Diamond Bezel Engagement Ring | IGI Certified | DEF Color | VVS Clarity
2.00ct Old Mine CushionLab Diamond Ring | D-E-F VVS–VS | IGI Certified | 10K 14K 18K Gold
2.10tcw Elongated Cushion Lab Diamond Solitaire Ring | IGI Certified | Yellow Gold
2.40tcw Cushion Lab Diamond Engagement Ring | Pear Accents | IGI Certified | Ethical Jewelry
2.40tcw Cushion Lab Diamond Ring with Pear Sides | Ethical Engagement | IGI Certified
2.50Carat Cushion Cut Lab Grown Diamond Ring | Bezel Set in 14k Yellow Gold | D-E-F Color, VVS–VS Clarity | Modern Solitaire
2.50ct Cushion Lab Grown Diamond Halo Engagement Ring | Pavé Band | IGI Certified | White Gold
2.50ct Cushion Lab-Grown Diamond Engagement Ring | Hidden Halo | Rose Gold Setting
2.50ct Cushion Old Mine Lab Grown Diamond Bezel Engagement Ring | IGI Certified | Ethical Gold
2.50tcw Cushion Lab Diamond Engagement Ring | Hidden Halo | IGI Certified | Custom Yellow Gold
2.65ct Cushion Lab Diamond Engagement Ring | Hidden Halo | IGI Certified | Gold & Platinum
3.00ct Cushion Crisscut Lab Diamond Bezel Engagement Ring | EF VS3.00ct Cushion Crisscut Lab Diamond Bezel Engagement Ring | EF VS
3.00ct Cushion Lab Grown Diamond Bezel Engagement Ring | IGI Certified | DEF VVS | Old Mine Cut
3.00ct Elongated Cushion Lab Diamond East-West Ring | IGI Certified | Yellow Gold
3.00tcw Cushion Lab Diamond Three Stone Ring | IGI Certified | D-E-F | VVS–VS | Trapezoid Side Stones
3.15tcw Cushion Lab Diamond Solitaire Engagement Ring | IGI Certified | White Gold | 3.00ct Center
3.20tcw Elongated CushionLab Diamond Engagement Ring | IGI Certified | VVS–VS Clarity
3.30tcw Cushion Lab Diamond Twisted Band Engagement Ring | D-E-F VVS–VS | IGI Certified
3.50tcw Fancy Yellow SQ.Cushion Lab Diamond Ring | Halo Split Style | IGI Certified
3.5tcw Emerald Lab Diamond Three Stone Engagement Ring | 3ct Center | IGI Certified3.5tcw Emerald Lab Diamond Three Stone Engagement Ring | 3ct Center | IGI Certified
4.40tcw Cushion Lab Diamond Ring | Ethical Three Stone Design | IGI Certified | DEF Color
4.40tcw Fancy Pink Cushion Lab Grown Diamond Ring | 0.40ct Pear Side Stones | Three Stone Style Ring | White Gold | With  IGI Certified
4.50ct Cushion Lab Diamond Engagement Ring | Hidden Halo Pave | IGI Certified | White Gold
4.50tcw Cushion Lab Grown Diamond East West Half Bezel Engagement Ring | IGI Certified | VVS–VS Clarity4.50tcw Cushion Lab Grown Diamond East West Half Bezel Engagement Ring | IGI Certified | VVS–VS Clarity
5.60tcw SQ Cushion Lab Diamond Halo Engagement Ring | IGI Certified | D-E-F Color | VVS Clarity
5ct Fancy Pink Cushion Lab Diamond Ring | 0.80ct Tapered Baguettes Side Stones | IGI Certified | 5.80tcw5ct Fancy Pink Cushion Lab Diamond Ring | 0.80ct Tapered Baguettes Side Stones | IGI Certified | 5.80tcw
7.00ct Cushion Lab Diamond Solitaire Ring | IGI Certified | Custom Yellow Gold | Ethical Luxury
8.00tcw Cushion Fancy Yellow Lab Diamond Ring | IGI Certified | Two-Tone Hidden Halo Setting
Cushion 1.00ct Lab Diamond Two Tone Cathedral Ring | IGI Certified | D-E-F | VVS–VS
Cushion 10.00ct Lab Grown Diamond Bezel Set Engagement Ring | Yellow Gold | IGI CertifiedCushion 10.00ct Lab Grown Diamond Bezel Set Engagement Ring | Yellow Gold | IGI Certified
Cushion 2.00tcw Lab Diamond Hidden Halo Engagement Ring | IGI Certified | DEF VVS | Custom Gold
Cushion 2.50tcw Lab Diamond Three Stone Ring with Princess Sides | IGI Certified | D-E-F | VVS–VS
Cushion 3.20tcw Lab Diamond Engagement Ring | 2.5ct Center | IGI Certified | VVS–VS | White GoldCushion 3.20tcw Lab Diamond Engagement Ring | 2.5ct Center | IGI Certified | VVS–VS | White Gold
Cushion 3.30tcw Fancy Yellow Lab Diamond Halo Ring | IGI Certified | White Gold
Cushion 3.40tcw Lab Grown Diamond, Three Stone Bezel Set Engagement Ring, D-E-F Color, VVS-VS Clarity, IGI Certificate
Cushion 3.60tcw Lab Diamond Accent Engagement Ring | IGI Certified D-E-F VVS-VSCushion 3.60tcw Lab Diamond Accent Engagement Ring | IGI Certified D-E-F VVS-VS
Cushion 3.60tcw Lab Diamond Baguette Pave Engagement Ring | IGI Certified | Yellow Gold
Cushion 3.70tcw Lab Grown Diamond 3-Stone Ring with Trapezoid Sides | IGI Certified | Ethical
Cushion 4.00ct Lab Grown Diamond Engagement Ring | Hidden Halo | Marquise Side Stones | IGI Certified | D-E-F Color | VVS–VS Clarity | Ethical Fine Jewelry
Cushion 4.00tcw Lab Diamond Split Band Ring  | IGI Certified | D-E-F | VVS–VS
Cushion 4.00tcw Lab Grown Diamond Halo Engagement Ring, D-E-F Color, VVS-VS Clarity, IGI Certified
Cushion 5.50tcw Lab Diamond Pave Halo Ring | D-E-F VVS-VS | Rose Gold | IGI CertifiedCushion 5.50tcw Lab Diamond Pave Halo Ring | D-E-F VVS-VS | Rose Gold | IGI Certified
Cushion 8.50tcw Lab Diamond Hidden Halo Cathedral Ring | IGI Certified | D-E-F | VVS–VS
Cushion And Asscher 5.70tcw Lab Diamond Two Tone Hidden Halo Ring | IGI Certified
Cushion Blue 1.00tcw Lab Grown Diamond Baguette Accent Engagement Ring | White Gold | D-E-F Color | VVS-VS Clarity | IGI CertifiedCushion Blue 1.00tcw Lab Grown Diamond Baguette Accent Engagement Ring | White Gold | D-E-F Color | VVS-VS Clarity | IGI Certified
💎 Cushion Lab-Grown Diamond Rings — Romantic Softness, Iconic Brilliance

Embrace the perfect balance of soft curves and striking brilliance with our Cushion Lab-Grown Diamond Rings collection. ✨ Loved for their rounded corners and larger facets, cushion cuts exude vintage romance while delivering modern fire and shimmer — making them the ultimate blend of old-world charm and contemporary elegance.

From delicate bezel solitaires to intricate halo pavé designs and bold three-stone masterpieces, each cushion lab-grown diamond ring captures light from every angle and tells a story of timeless love. All pieces are ethically crafted with IGI-certified lab diamonds for a beauty you can feel good about.

✨ Why Choose a Cushion Lab Diamond Ring?

💖 Soft, Romantic Glow — Cushion cuts are famed for their pillow-like shape, offering a dreamy sparkle that flatters every hand.

🌱 Consciously Created — Our lab-grown diamonds are conflict-free and fully IGI certified, combining luxury with responsibility.

🎨 Endless Expressions — Choose from hidden halos, vintage-inspired bezels, split shank, or east-west designs — each can be customized in your favorite metal.

💰 Elegant Impact, Great Value — Enjoy higher carat weights and premium clarity (VVS–VS) without the inflated price tag of mined stones.

🔗 Explore More Collections You’ll Adore

Oval Lab Diamond Rings — For elongated elegance.

Three-Stone Diamond Rings — Symbolizing your past, present, and future.

💍 Cushion Lab Diamond Favorites

💫 3.00ct East-West Solitaire Cushion Ring — Statement style, endless versatility.

🌸 4.40tcw Fancy Pink Three-Stone Ring — Rare color brilliance for a bold love story.

5.60tcw Halo Pavé Masterpiece — Grand, luminous, unforgettable.

🌿 7.00ct Solitaire Yellow Gold Ring — For the ultimate showstopper moment.

Our Commitments

Our reputation for excellence includes.

📦 Secure Shipping

Free worldwide delivery in 5–7 days via USPS, UPS & DPEX.

💎 Ethical Brilliance

IGI / GIA certified. We proudly stand behind our diamond & jewelry quality.

🎉 Holiday Specials

Celebrate the season! Use code SAVE10% for exclusive deals.

🤝 Customer Care

Hassle-free support & free 30-day returns on all orders.