Lab Grown Diamond Cushion Engagement Rings
Why buy from Dileti:
- IGI certified stones with complete transparency
- Free insured EU delivery with no customs duties
- 14-day returns with free return shipping
- 60–70% lower pricing than natural diamonds
- Solitaire settings: showcase pillow shape geometry through minimal metal interference. Four-prong configurations secure rounded corners elegantly. Solitaire engagement rings accentuate cushion softness beautifully.
- Halo settings: surround cushion centres with brilliant accent diamonds, enhancing fire dispersion whilst amplifying overall visual scale. Halo engagement rings suit cushion cuts exceptionally well.
- Three-stone settings: flank cushion centres with round or side cushion diamonds. Three stone engagement rings balance pillow silhouettes smoothly.
- French pavé settings: complement cushion fire with continuous band sparkle. French pave engagement rings add refined detail.
Metal options include 18-karat white gold, yellow gold, and rose gold. All Dileti settings include free resizing within 14 days.
| Shape | Price vs Cushion | Faceting Type | Best For |
|---|---|---|---|
| Cushion | Baseline | Brilliant / Modified | Vintage warmth & dispersion |
| Round | 15–25% higher | Brilliant cut | Maximum brilliance |
| Radiant | Similar | Brilliant cut | Geometric sparkle |
| Princess | 5–10% less | Brilliant cut | Sharp cornered geometry |
Frequently Asked Questions
Lab-grown cushion diamonds cost significantly less than mined diamonds of the same quality, so the same budget goes further, toward a larger or higher-grade stone. They are best chosen to wear and enjoy rather than as an investment, since fine jewellery is rarely bought to resell. Dileti sets each lab-grown cushion diamond in 18K gold in Antwerp, and final pricing depends on the stone's 4Cs.
Cushion diamonds work well in solitaire, halo, pavé, and three-stone settings. The setting suits both square and rectangular cushions, with prongs at the soft rounded corners holding the stone securely. Dileti mounts each lab-grown cushion diamond in 18K white, yellow, or rose gold, crafted in Antwerp.
Yes, lab-grown cushion diamonds share the same 10 Mohs hardness as mined diamonds, so they suit daily wear. Durability comes from secure settings protecting the rounded corners rather than the diamond's origin. Dileti dispatches each ring within 5 to 7 business days via FedEx, with 14-day store-credit returns.
A cushion brilliant has larger facets that create bold, chunky flashes of light, while a cushion modified adds extra facets for a softer crushed-ice sparkle. Both perform well, so the choice is about the look you prefer. Dileti offers lab-grown cushion diamonds in 18K white, yellow, or rose gold.
Yes, lab-grown cushion diamonds are genuine diamonds with the same chemical, physical, and optical properties as mined diamonds, and gem laboratories grade them on the same 4Cs. The only difference is origin: they are grown in a laboratory instead of mined. Dileti sets each lab-grown cushion diamond in 18K white, yellow, or rose gold in Antwerp.
Square cushions sit at a 1.00 to 1.05 length-to-width ratio, while rectangular cushions run from 1.15 to 1.25. The square shape looks classic and the rectangular shape elongates the finger, so it comes down to taste. Dileti grades its lab-grown cushion diamonds on the standard 4Cs.
Lab-grown cushion diamonds of 1 carat and above are IGI-certified at Dileti, while stones under 1 carat are not certified. The IGI report documents the diamond's cut, colour, clarity, and carat weight against recognised grading standards, so you can check the exact grades before you buy.
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