Trilogy Diamond Cluster Engagement Ring

The Addison trilogy diamond cluster engagement ring provides a unique alternative ring design compared to traditional three-stone engagement rings. Three equally sized diamonds, matching in colour and clarity, sparkle at the heart of this contemporary ring design. Choose from three different carat weight options including:

0.50 carats - set with 3 x 3.5mm round brilliant cut diamonds

0.75 carats - set with 3 x 4mm round brilliant cut diamonds

1.00 carats - set with 3 x 4.5mm round brilliant cut diamonds (see images above)

The engagement rings represents one of few designs benefitting from a wider band and benefits from a comfort fit 3.5mm wide ring narrowing as each shoulder stylishly sweeps to meet the setting. 

We individually craft each ring design, available in a choice of Platinum or Gold options tailored to your exact specifications. We present your finished ring in luxury Serendipity Diamonds packaging within a presentation box, accompanied by a slimline pocket box for your proposal. 

Matching wedding rings for the Addison trilogy ring. 

Discover our bespoke shaped wedding ring service to create any shaped band in your preferred style. Our example below shows just one possible wedding ring design created for the Addison ring. This beautiful engagement ring also suits a straight band resting on the opposing side of the ring. Contact us for guidance on any aspect of the engagement ring or wedding ring. 

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.