Free UK Shipping over £100Bespoke Designs Available - Book a ConsultationHand-crafted, ethical jewellery. Made in Bristol.
Diana Porter
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Platinum Ring Set with Large Rose Cut Black Diamond

£1,970

SKU: CB6-BRCD-plat

A 1ct black rose cut diamond covered in triangular glistening facets, encased in platinum, the band is set with 1mm five black diamonds down each shoulder.  

  • Select Ring Size

Made to Order. Please allow up to 4 - 6 weeks for delivery.

Free UK shipping over £100
Description

A 1ct black rose cut diamond covered in triangular glistening facets, encased in platinum, the band is set with 1mm five black diamonds down each shoulder.  

Dimensions: 1.92mm thick, 2.09mm wide, height setting 5mm. 1ct rose-cut diamond and ten 1mm black diamonds.  

If you have any further questions about this product or would like to chat about bespoke options: Call us 0117 9090225 or contact us 

Ring Sizing

Please see our Ring Size Guide.

Materials & Craftsmanship

Our materials are ethically sourced wherever possible, and we are proud to be Fairtrade Gold registered and approved. Every piece in our gold collection is crafted from certified Fairtrade gold. Each Diana Porter creation is meticulously hand-made by skilled jewellers in our Bristol studio.

Book an Appointment

If you’d like to chat about bespoke services: please book an appointment with us here.

Delivery & Shipping

Silver Delivery Times

Sibyls will be posted within 5 working days.

All other silver items are made to order and will take 1-3 weeks - please contact us if you have a deadline

Gold and Platinum Delivery Times

Items are made to order so will be dispatched within 4-6 weeks. One of a kind collection will be sooner but please allow 1 week for resizing.

Guest Designers

Items are in stock so will be posted in 1-2 working days.

Delivery Cost

UK insured delivery - Orders over £100 - FREE
UK insured delivery - Orders under £100 - £5.50
Collect from store - FREE
UK Special Delivery - £10
International delivery - £16

Need something sooner or looking for bespoke options?

If you have any further questions about this product or our services: Call us 0117 9090225 or email web@dianaporter.co.uk

  • UK Designed & Made
  • Ethically Sourced
  • 0% Finance Available

Want to make it bespoke?

Like this design but want it in a different material, size, or with alternative gemstones? Get in touch with us, and we'll provide a personalised quote for your bespoke jewellery piece.

Our Team of designers and artisans have been creating exquisite jewellery from our Bristol studio since 1993. Using eco-friendly materials and fair trade gold to create unique, beautiful jewellery.

Discover our Story
A skilled artisan creating contemporary jewellery in a workshop

Free UK Delivery Over £100

Interest-free Finance Available

Fairtrade Gold Certified

Diana Porter
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Add Personalised Engraving

The perfect way to celebrate a special moment, person or occasion.

0/25
Diana Porter

Rings & Bangles: Engraving will be on the inside edge
Sibyls: Engraving will be on the reverse side.

Personalised items are non-refundable.

Engraving Price: £35

Ring Size Guide

We're here to help you find the right size

If you have a ring that fits you comfortably, you can measure your size by comparing it's inside diameter measurement to our chart below:

Half sizes are also available if your ring is between sizes.

Inside Diameter UK US EU
14.5mm G 3.5 45
15.0mm H 4 46.5
15.3mm I 4.5 48
15.6mm J 5 49.5
16.2mm K 5.5 50.5
16.6mm L 6 52
16.9mm M 6.5 53
17.2mm N 7 54.5
17.8mm O 7.5 55.5
18.1mm P 8 57
18.5mm Q 8.5 58
19.1mm R 9 59.5
19.4mm S 9.5 61
19.7mm T 10 62
20.4mm U 10.5 63.5
20.7mm V 11 64.5
21.0mm W 11.5 66
21.6mm X 12 67
22.0mm Y 12.5 68.5
22.3mm Z 13 69.5

Where here to help you find the right size

Not sure which size is for you? Our team are here to help you.

Simply phone us on 0117 9090225 or email web@dianaporter.co.uk and we can send you a free plastic ring sizer.

If you drop into our shop, our experts can measure you on the spot.

Free resizing within 1 month of purchase

Worried about ordering the wrong size?

Simply return the ring to us (or drop it into the shop) within 1 month of purchase and we can resize it for free.

Ring sizing tips

We've put together this handy ring sizing guide where you'll find lots of useful tips and information on how to work out an accurate ring size for a comfortable and secure fit.

Metal Type Guide

We offer jewellery in 8 different metals, as shown below.

Metal availability will vary from piece to piece. For more information on our materials, please see our Materials Guide.