Celebrate with the Sonnet Asscher Cut Solitaire Engagement Ring

The Sonnet engagement ring perfectly defines the Asscher cut's outline and geometric beauty. This square Emerald cut style possesses subtle stepped facets combined with polished corners. The design is distinctively simple with four sculptured claws in a choice of precious metal options. Choose from Fairtrade or regular 18ct Gold in white, yellow and rose coloured variations. Select your diamond carat weight, colour and clarity from a wide range of quality options. This elegant setting allows light to pass freely and uninterrupted through the side of the stone revealing the crystal clarity of your diamond. Falling away on either side, knife edged shoulders flow towards the comfortable 2.5mm court shaped band, perfect for everyday wear. The Sonnet engagement ring design benefits from a practical setting height approx. 5.5mm from the finger and can be created in approximately 3-4 weeks of placing your order. We will create and deliver your ring, made to your exact specifications, beautifully presented with the addition of a reputable diamond grading certificate and insurance valuation. Within your box, we will include the presentation box and pocket box—perfect for a surprise proposal. 

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. We are all experts in jewellery and diamonds, speaking daily with other people in your situation. We offer free, impartial advice on all aspects of your purchase from diamond grading and precious metals to finance. 

Contact us today

Diamond sizes on the finger

Use our interactive diamond size guide below to see diamond shapes and sizes on the finger. Select your preferred shape and carat weight (right). Use the menu for more information on diamond size and choose skin tone. 

How does my engagement ring arrive?

Within the United Kingdom, all engagement rings are 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 

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. 

Reassurance on our high standard of diamond cut grade

We strive to ensure the highest possible standard across the UK in every aspect of your purchase. For this reason we ensure that each diamond achieves a minimum of a very good cut grade for maximum sparkle and brilliance. Where applicable, this will be documented on your reputable diamond grading certificate. We favour the most recognised diamond grading laboratories, typically GIA.