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Cushion Cut Lab-Grown Sapphire Engagement Rings

Crafted by our jewellers with care and precision.
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Frequently Asked Questions

Your questions, answered.

Cushion cuts have larger, softer facets than brilliant cuts, so light moves across a cushion cut sapphire engagement ring in broad, warm flashes rather than sharp, scattered sparkle.

Look for even colour saturation, good symmetry between the rounded corners, and facets that create a soft, even glow rather than dark or washed-out patches.

A classic cushion cut is closer to square, while an elongated cushion cut has a stretched, rectangular outline that visually lengthens the finger. Read more about the elongated cushion shape in our blog A 360 of Elongated Cushion Cut Engagement Rings.

Yes. Sapphires rank 9 on the Mohs scale, making a cushion cut sapphire engagement ring durable and well suited to daily wear. For more information about sapphires, read What are Lab-grown Sapphires?

No. Occasional cleaning with warm water, mild soap and a soft brush is enough to keep a cushion cut sapphire engagement ring looking its best. For full guidance, visit our Ring Care Guidance.

Yes. All Cullen cushion cut sapphire engagement rings can be personalised across carat weight, metal, setting style, and band width. For a fully tailored design, our custom design service allows you to design from the ground up.

Cullen's cushion cut sapphire engagement rings are available in 18k yellow, white and rose gold, as well as platinum and two-tone options, all nickel-free. For more details, visit our Precious Metals Guide.

Made-to-order cushion cut sapphire engagement rings are typically crafted within 40 business days, with an estimated completion date shown on each product page. If you need a ring sooner, view our Ready to Ship range. For full details, visit our Crafting Timeframes page.

Yes. Every Cullen ring comes with a Lifetime Manufacturing Warranty covering manufacturing defects, so you can wear your ring with complete peace of mind.

Yes. We offer one complimentary resize within 12 months of your ring's completion, for the perfect fit. Visit our resizing policy for full details.

Bask In The Soft Glow Of Cushion Cut Sapphire Engagement Rings

With rounded corners and a soft, romantic silhouette, the cushion cut sapphire engagement ring balances vintage charm with modern elegance. Its depth and dimension catch light with a warm, candlelit glow rather than sharp brilliance. Equally at home in a halo, solitaire or trilogy setting, this cushion cut sapphire engagement ring feels timeless yet personal.

Superior craftsmanship, thoughtful customisation, and premium materials are the foundation of every Cullen ring. The rest is shaped by you. Our jewellers and ring specialists are here to guide you through every step of finding the one. Each piece is brought to life using premium precious metals and carbon-neutral stones, including lab-grown diamonds, moissanite and lab-grown sapphires, crafted with exceptional care and attention to detail.

Explore our collection of cushion cut sapphire engagement rings in the UK. Discover our full range of designs online, or book a personalised consultation with our team to bring your vision to life.

A Cushion Cut Sapphire Engagement Ring Epitomises Eternity

Cullen specialises in cushion cut sapphire engagement rings, combining the expertise of experienced jewellers with an exceptional client care team to guide you from the first conversation through to the finished piece. Every cushion cut sapphire is set in premium precious metals for a ring that feels as timeless as it is romantic. Its soft, rounded silhouette and warm glow make it a classic yet distinctive choice.

Need help choosing your perfect cushion cut sapphire engagement ring in the UK? Book a virtual or in-person appointment at one of our showrooms to speak with one of our friendly engagement ring specialists.

Purposefully designed, endlessly alluring.

Worldwide Express Shipping No matter where you are in the world, your dream ring will go the distance. We proudly ship our cushion cut sapphire engagement rings across the UK and internationally, ensuring your custom piece arrives safely and swiftly.

Free Resizing We offer free resizing on all of our engagement rings, including cushion cut sapphire engagement rings, ensuring a perfect fit for something uniquely yours.

Lifetime Warranty Our cushion cut sapphire engagement rings are built to last a lifetime. Each piece is backed by our Lifetime Manufacturing Warranty, giving you complete peace of mind.

Tailored Ring Customisation From stone shape to metal type with personalised engravings, we offer an extensive bespoke customisation service so you can wear a cushion cut sapphire engagement ring that feels entirely one of a kind.

Thoughtfully Designed in Melbourne, Australia All of our rings, including our cushion cut sapphire engagement rings, are crafted by our expert jewellers with exceptional attention to detail.

Carbon Neutral Gemstones & Trees For The Future We offset the carbon footprint of every cushion cut sapphire engagement ring and plant a tree for each ring sold, supporting global reforestation.

Bespoke Design Specialists Whether you're dreaming of an elegant cushion cut sapphire engagement ring or a custom gold cushion cut white sapphire engagement ring, our team specialises in bringing your vision to life with a ring that's unmistakably yours.