Hand photograph shows the Ciel engagement ring 0.60cts version shown with the matching 2.5mm plain wedding ring

Graduated Round Brilliant Diamond Trilogy Engagement Ring

Each Round Brilliant cut Diamond is held within a very modern claw setting with built-in wedding ring friendly fit. The style has been completed with beautifully styled court profile shoulders and band. Wedding Ring available to order separately. We can create this ring for you in approximately 3-4 weeks in Platinum or you can choose 100% ethically resourced Fairtrade Gold. When you receive your ring it will be packaged delightfully in our bespoke packaging and will include a slim pocket box and the comfort of a 60 days returns policy and free ring size adjustment if needed. 

UK Ethical Jewellery and Fairtrade Gold

UK clients can now take advantage of additional value offered by Fairtrade Gold. Many of our commissions can be created in 18ct White Fairtrade Gold or 18ct Yellow Fairtrade Gold. Responsibly sourced and fully traceable, Fairtrade Gold gives UK clients the reassurance that their purchase has helped the lives of impoverished, small scale artisanal miners in areas such as Peru. As part of the Fairtrade Foundation, miners receive a fair price for the gold they produce, and a premium per kilogram which benefits the development of their community. 

Diamond grading you can trust

Trust in reputable diamond certification from GIA (Gemological Institute of America) and IGI (International Gemmological Institute). Our diamonds achieve a minimum of a VERY GOOD CUT. This ensures maximum brilliance from your diamond. Excellent cut diamonds can be provided upon request.

Free UK Finger Size Tool ?

We will send you a free UK finger size tool. This very handy strap style sizer will make it much easier to work out your finger size. We will put this in the post same day with immediate confirmation this has been sent. This useful ring sizer is without any obligation to make a purchase. 

Order your free UK ring sizer

Do you need guidance?

Get in touch for friendly, helpful guidance on regular engagement rings and on our bespoke design service. We offer free, impartial advice on all aspects of your purchase from diamond grading and precious metals to finance. 

Contact us today

How does my engagement ring arrive?

Within the United Kingdom, each completed ring from our extensive diamond engagement ring collection beautifully packaged and sent by International Signed For Delivery, by Royal Mail. We insure all parcels until they arrive with you. Deliveries arrive next day after despatch. All parcels arrive under plain wrapping. Inside you will discover a sturdy outer box, containing a document section with document folder for valuations and certification. Your engagement ring will arrive inside a presentation box, accompanied by our handy pocket sized ring box. 

Read more about packaging and delivery 

Interactive diamond sizes - see how your diamond sizes appears on the hand

Select your chosen diamond shape and carat weight and see how big it looks on the finger. Our handy tool is designed to help you judge diamond size across a variety of diamond shapes. 

Photographed example of our engagement ring packaging for clients across the UK. Engagement rings are sent in luxurious packaging with presentation box and pocket box conveniently sized to hold the engagement ring for a surprise proposal. 

Buy with Confidence UK 

For your total reassurance, Serendipity Diamonds is listed with Buy with Confidence, and offers 100% reassurance and satisfaction. UK Buyers benefit from 60 days returns on most items, a lifetime warranty free size adjustments and competitive prices (50 - 70% below high street prices) on most items. Our diamonds are sourced directly from diamond polishers worldwide and rings are meticulously crafted in our workshops before being sold directly. The result is exceptional value for money with all of the benefits of luxury—the complete package. Read more about us online. Besides our diamonds, enjoy the reassurance of natural, beautifully cut and responsibly sourced pink sapphires, blue sapphires, rubies and emeralds for our gemstone collection of engagement rings.