Choosing cushion cut lab diamond engagement rings

Assess the cushion cut diamond

Some cushions look almost square; others are more rectangular. Their faceting can also produce different patterns of brightness. Judge the selected diamond’s appearance rather than assuming all cushions share one look, and use its millimetre dimensions to assess coverage on the hand.

Look at the complete mounting

Compare the corner claws and overall head width. A surrounding halo can make the ring broader, while a fine solitaire keeps more emphasis on the cushion itself. The height and underside of the basket matter when pairing it with a wedding band.

Compare the selected laboratory information

Read the report issued for your chosen lab grown diamond, including its date, dimensions and relevant comments. Report services and terminology differ. Compare current complete-ring prices with the same stone and mounting specification, and ask for viewing information if appearance is not clear.

Designs to compare

2026 Award Nominations

Award Winning Jeweller

We’re proud to be recognised consistently by the UK jewellery industry’s leading awards programmes. In 2026, Lily Arkwright has been shortlisted for Branded Boutique of the Year at the Professional Jeweller Awards and Bridal Jewellery Retailer of the Year at the UK Jewellery Awards, reflecting our continued commitment to exceptional customer service, product innovation, and ethical craftsmanship.

These latest nominations build on previous industry recognition, including being shortlisted for Bridal Jewellery Retailer of the Year at the 2025 UK Jewellery Awards and Independent Retailer of the Year at the Professional Jeweller Awards 2025. We were also finalists for Retail Team of the Year at both the Retail Jeweller Awards and Professional Jeweller Awards in 2024, recognising the passion, expertise, and dedication of our team.

We’re honoured to be recognised for helping thousands of couples find the perfect engagement rings and wedding rings, with a strong focus on choice, transparency, and personalisation. As an award-winning jeweller, we remain committed to delivering exceptional service, exceptional craftsmanship, and responsibly sourced lab-grown diamonds, moissanite, and natural diamonds, ensuring every customer can find a ring that perfectly reflects their love story.

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At Lily Arkwright, Community Matters Lily Arkwright’s roots lie in leafy Didsbury, Manchester. While we have grown into one of the UK’s leading fi...

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Supporting Unicef

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Global Witness

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Cushion Cut Lab Diamond Engagement Rings FAQs

What proportions matter most for cushion lab-grown diamond engagement rings?

A cushion-cut lab-grown diamond combines softly rounded corners with a square or gently rectangular outline. We would begin by comparing the actual length and width, as similar carat weights can give surprisingly different visible sizes. The band width and any halo will also affect how full the ring looks. If you prefer a longer outline, our elongated cushion lab diamond rings are well worth comparing.

How can I compare different facet patterns in a cushion-cut lab-grown diamond centre stone?

Cushion-cut diamonds can have quite different facet patterns. Some give broad, distinct flashes of light, while others have the finer sparkle often described as crushed ice. Neither appearance is universally better. We'd encourage you to look at moving images of the actual stone and decide which pattern catches your eye. Shape, depth and cut all play a part in how the diamond performs.

Which settings suit a cushion lab-grown diamond ring?

A cushion-cut solitaire feels softly classic, allowing the gently rounded corners to remain visible. A halo makes the whole setting wider and can create a more defined square outline, while a bezel gives a smooth rim of metal. We'd compare the complete setting dimensions, not only the centre stone, and check the basket height if you're hoping for a wedding band that sits neatly beside it.

Need help choosing your jewellery?

Our jewellery specialists would be delighted to help you compare designs at our London or Manchester showrooms, or in a virtual consultation.

Book an appointment