The Fifth C is Cost.
Exceptional diamonds, considered design and transparent pricing, without the traditional showroom markup. Create something truly yours, entirely online.
One standard. More ways to create.
Start with a stone, a style or simply an idea. Our process is built to make bespoke feel clear rather than complicated.
Natural diamonds
High-quality certified stones selected around cut, colour, clarity and value.
Explore natural
Lab grown
More size and specification for your budget, with transparent certification.
Explore lab grown
Gemstones
Sapphire, emerald, ruby and beyond, sourced for distinctive, personal designs.
Explore colourThe traditional 4 C’s tell you about the diamond. The Fifth tells you whether it’s fair.
Fifth C was created to remove unnecessary layers between you and the piece you actually want. Premium specification should come with clarity, education and a price you can understand.
Send us the link. We’ll make it yours.
Seen a ring on Pinterest, Instagram or another jeweller’s website? Share it without the awkward sales conversation. We can discuss the elements you love, adapt the design and quote around your specification and budget.
Send your inspiration →Pinterest · Instagram · competitor link · sketch · screenshot
From inspiration to final piece.
Share
Send a link, photo, sketch, stone preference or simply tell us your budget.
Select
Explore suitable diamonds or gemstones and receive clear guidance on specification.
Design
Your bespoke concept moves into CAD, with a target 72-hour design turnaround.
Craft
Once approved, your piece is made, quality checked and prepared for delivery.
Made to be personal.
