Men's Blue Diamond Ring, 0.59ct IGI Certified, 9ct White Gold

A 0.59ct radiant cut lab grown diamond sits at the centre of this ring, measuring 5.30mm by 4.10mm by 2.81mm and graded fancy vivid blue.

Fancy vivid is the strongest colour grade a coloured diamond can be given, meaning the blue is deep and saturated rather than pale. The stone comes with an IGI certificate, so the colour grade and the carat weight are independently confirmed rather than being our description of it.

A radiant cut is a rectangular shape with trimmed corners and brilliant style faceting, which is the reason this cut is often chosen for coloured diamonds: the faceting pattern reflects light through more of the stone's body, so the colour reads more strongly than it would in a step cut of the same grade.

The band is 9ct white gold. It carries the Platinum Jubilee commemorative hallmark, an optional mark that the UK assay offices applied only during 2022 to mark the Queen's seventy years on the throne. It is no longer available, so any piece bearing it is fixed to that year.

This ring is ready to ship, and because the hallmark cannot be reapplied it exists as it is rather than being made to order. Please give your ring size in the notes at checkout so we can check it before dispatch.

Our guide to lab grown and natural diamonds explains the difference between the two, and our guide to diamond quality factors explains how colour, clarity and cut are assessed.

If you have a question about the ring or would like to see it at our showroom at The Pantiles in Royal Tunbridge Wells, Kent, please get in touch.

Check your size with our ring sizing guide, and see the rest of the range in our ring collection.

Design & Materials

• 0.59ct radiant cut lab grown diamond
• Fancy vivid blue
• IGI certified
• 5.30mm x 4.10mm x 2.81mm
• 9ct white gold
• Hallmarked with the Platinum Jubilee commemorative mark
• Ready to ship