The Keystone Ring

£5,600.00
By Lily Flo Jewellery
Minus Plus

The Keystone Ring

14k Solid Gold with Emerald-Cut Diamond
From the Lucen Facet Collection
Made to order | Fully customisable

A sculptural force. A foundation stone.

The Keystone Ring is the most architectural form in the Facet collection. It anchors a rectangular emerald-cut diamond within a sharply faceted bezel, carved with chiselled planes that taper from a wide shoulder to a comfortable fit. The form is weighty but refined — like a cornerstone in a brutalist cathedral or the keystone in an arch.

It’s a ring for those who hold space. For the grounded, steady presence in any room. For the person who leads from within.

Materials & Finish

  • 14k solid gold (shown in satin matte finish)

  • Center: 8x6mm emerald-cut diamond (approx. 1.50ct)

  • Solid comfort band with architectural taper

  • Brushed outer surface, polished inner shank

Customisation Options

  • Center stone: white, champagne, or grey emerald-cut diamond

  • Also available in lab-grown diamond or coloured gemstones (e.g. emerald, tourmaline, sapphire)

  • Custom engraving or hidden inner stone available

  • Band width adjustable (shown here at ~6mm tapering to 4mm)

Price Guide

  • From £5,600 in 14k gold with natural white emerald-cut diamond

  • From £3,400 with lab-grown diamond

  • From £1,950 with coloured gemstone (e.g. green tourmaline or moissanite)

Pair It With

  • The Keystone Band — a tapered plain band with echoing shoulder facets

  • The Fold Ring — a thinner partner ring that sits parallel, mimicking the lines

More Details Right
DESIGNED AND MADE IN OUR LONDON STUDIO

ETHICAL and RESPONSIBLY MADE

Every piece of Lily Flo Jewellery is designed and handmade in our own studio in London.

We are an ethical jeweller; all our gold is recycled and we use lab grown and recycled vintage diamonds, all from the highest quality sources here in London to reduce any carbon footprint or issues with slavery or transparency through the supply chain.

We are an artisanal jeweller, using traditional goldsmithing and gemstone setting skills - everything is made with genuine love and passion in-house.

This means that we can adapt and design anything bespoke for you, so if you want something just let us know.