About SixC


diamond shapes

SixC was established to help deliver superior quality diamonds and stunning bespoke jewellery directly to customers.

Our SixC’s

1. Cut

2. Colour

3. Clarity

4. Carat

5. Confidence

Buying diamonds is complex: we want to give our clients confidence.

There is usually a clear information asymmetry between buyer and seller. SixC seeks to bridge this gap: working with us will get you one-to one service where you want, when you want and how you want. We can either solve to deliver a bigger and/or higher quality of stone for a given budget or get the same quality/size of stone you had in mind, for a lower cost.

SixC works directly with each buyer, taking the time to understand requirements and objectives. If you know the design you want, we can sense-check the design is fit for purpose and budget.

If you don’t, SixC can provide a broad range of design options, listen to feedback and work on an iterative basis to make sure the final design is just right.

We strive to give you the confidence that what you’re buying will be superb and, importantly, very well received!

6. Custom

 

The SixC Approach

Expert, 1:1 approach.

We provide you a comprehensive education on diamonds and discuss design options from the outset.

Advice.

We curate a selection of the highest quality diamonds to choose from. We don’t hold inventory so remain impartial and can get you the best diamond for your budget.

Convenient.

View diamonds and designs at a time that suits you, either in person or on Zoom. All pieces are handcrafted in London and can be delivered or collected upon completion.

We offer our clients a 1:1 relationship with someone discrete, knowledgeable and trustworthy. Our objective is to deliver a personal, high-touch and luxury experience.

Jo Robinson, Founder

Our name, SixC, comes from the traditional “4Cs” used to describe a diamond’s quality: Cut, Colour, Clarity and Carat, plus two extra that sum up the ethos of our company: Custom & Confidence. Also, C6 is the atomic symbol for carbon, the element that makes a diamond.

Founder Jo Robinson spent 16 years in finance selling complex financial products to sophisticated investors across Europe, and she is now applying the same rigour and standards to her other passion - diamonds. She qualified with a Diamonds & Diamond Grading Diploma from the GIA (the regulatory body which is considered the global gold standard in diamond grading), now using her skills to validate and personally assess any stone under consideration.

Jo lives with her husband, three daughters and dog in South-West London.