Source with confidence

Start with the stone.

Explore the three main routes into a Fifth C design: certified natural diamonds, lab-grown diamonds and coloured gemstones. The live partner inventory will ultimately provide deeper stock filtering and pricing.

Browse categories

A curated starting point.

View live inventory
Round diamond solitaire
Natural · GIA

Round Brilliant

D–F colour · VS+ clarity · Triple Excellent preference

Classic brilliancePortal →
Trilogy diamond ring
Natural · Bespoke

Trilogy

Three-stone proportions tailored around budget and finger coverage.

Custom settingEnquire →
Diamond band
Lab grown · IGI

Lab Diamond

More size for the same budget with certification and clear specification.

Value focusedPortal →
Gemstone

Emerald

Rich colour, distinctive inclusions and setting choices made around everyday wear.

Colour firstEnquire →
Gemstone

Sapphire

From classic blue to lighter tones, sourced to suit style and budget.

Many coloursEnquire →
Diamond stack
Lab grown

Statement Size

A route for clients prioritising carat size, visual impact and value.

CertifiedPortal →
Our natural diamond preference

D–F. VS+. Triple Excellent. No fluorescence.

These are the preferred standards provided in the Fifth C relaunch brief. They give the site a strong educational position, while the final recommendation for each client can still respond to budget and design priorities.

Filter live diamonds
Certification · specification · value
Designed around you

Bring us the idea. We’ll make the piece yours.

Share a link, an image, a sketch or simply a budget. Fifth C turns inspiration into a considered bespoke design with transparent guidance from the first conversation.

Start your bespoke piece Explore live portal
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