Tension Set Diamond Solitaire Engagement Ring

This beautiful Round Brilliant cut Diamond solitaire Engagement Ring shows off the fire of your chosen Diamond to full effect. The Cassie Engagement Ring features a tension styled setting. Open, sleek and modern in appearance. With a sensible setting height, the court profile provides a very comfortable fit, and most Diamond choices are available with full certification and a very good cut grade. 

Choose from a wide selection of Diamond options, combined with a choice of precious metals including 18ct White Gold, 18ct Yellow Gold, 18ct Rose Gold, Platinum, and Palladium. Enjoy a lifetime warranty and 60 days returns on all purchases, beautifully presented in pristine Serendipity Diamonds packaging. We handcraft your chosen ring by hand, so please allow four weeks for this Engagement Ring before it arrives by secure courier at your door.

Responsibly sourced precious metals and Fairtrade Gold

An important part of our work involves the use of responsibly sourced precious metals and gemstones. As such, we only work with re-cycled, ethically sourced Gold, Platinum and Silver. In addition, we offer the option of Fairtrade Gold across most of our jewellery designs available upon request. 

Discover what's inside the box

When we send your parcel to USA, we securely wrap the secure outer box in a plain white outer wrapping. Inside you will discover a solid outer box containing a presentation box with engagement ring with an additional pocked ring box. All documents including certification are enclosed within the additional document wallet located in the separate section of the main box. We pride ourselves on luxurious packaging as part of your experience. 

See our information page on packaging and delivery

Certified Diamond Standards. 

With every certified diamond from Serendipity, we assure all clients of reputable diamond grading. We work with the most trusted laboratories including the Gemological Institute of America (GIA) and International Gemological Institute (IGI). All diamonds meet strict standards with no more than nil or slight fluorescence for your total reassurance. 

Get help with ring size.

Get help finding out the perfect ring size with our ring size service available with any ring purchase from Serendipity Diamonds. 

Find your finger size

Ask us any questions?

We love questions and we're happy to help. Whether you need specific ring details or general advice on custom-made rings, diamond color or clarity or customization. We offer expert guidance and advice on all aspects of your engagement ring with impartial no-obligation help. 

Get in touch

This ring design is available with a lab-grown diamond. 

Learn more about lab-grown diamonds  

This ring design is now available with a lab-grown diamond. Please contact us noting your design preference for a detailed quote set with a lab-created diamond. Please note that our lab-grown diamond engagement rings are identical in appearance and quality to our natural diamond options with a difference in cost working out to between 50% - 75% less than our natural diamond equivalent rings. Our lab-grown diamonds are typically available in higher colour clarity and cut grades and include full certification as shown below. 

Example of a lab-grown diamond available across our jewellery collection.