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Natural diamonds

Natural diamondswith an independent certificate

Formed in the Earth billions of years ago and graded by an independent laboratory. White and fancy colour diamonds in all standard shapes, for jewellers and custom jewellery.

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Natural · GIA
Rough crystal on dark rock

Formation

Billions of years underground

Diamonds form deep in the Earth’s mantle under immense pressure and heat, and volcanic eruptions carry them to the surface. That is why every natural diamond is unique in its inclusions, colour and crystal shape.

Rough diamond crystal

From crystal to brilliant

A cut that keeps the light

The rough crystal is scanned, planned and cut to keep as much weight and return as much light as possible. Proportions, symmetry and polish are graded separately on the report.

Diamonds in various shapes

Shapes and colours

From round brilliants to fancy colours

Round brilliant, oval, princess, emerald and cushion cut, pear and marquise. Besides white diamonds, we offer rare natural fancy colours in yellow, pink, blue and green.

4C

Four measures of value

Ct

Carat

One carat is 0.2 grams. Value rises faster than weight, especially at thresholds such as 1.00 ct.

D

Colour

A scale from D (colourless) to Z. Grades D, E and F are colourless, G to J near colourless.

IF

Clarity

From FL and IF to I3, based on inclusions visible under 10x magnification.

EX

Cut

Proportions, symmetry and polish. The cut has the greatest effect on brilliance and fire.

Ethical sourcing

Known origin, from source to you

We source natural diamonds only from legitimate suppliers, in line with the Kimberley Process and the World Diamond Council System of Warranties.

Every stone comes with its report number, a laser inscription where present and a clear statement that the stone is natural.

Certificates

GIA, IGI and HRD

GIA

Gemological Institute of America

The strictest and most widely recognised diamond grading standard, especially for natural stones.

Verify a report

IGI

International Gemological Institute

The most common report for lab-grown diamonds, stating the growth method.

Verify a report

HRD

HRD Antwerp

A European laboratory in Antwerp with a long tradition in diamond grading.

HRD Antwerp

FAQ

Natural diamonds

What does 4C mean?

The four measures of a diamond’s value: carat, colour, clarity and cut. All four are stated on the GIA, IGI or HRD report.

How do I know a diamond is natural?

The GIA, IGI or HRD report explicitly states natural origin. Check the report number on the laboratory website and compare it with the laser inscription on the girdle.

Are diamonds an investment?

We do not give investment advice. For buyers who value lasting worth we recommend a natural stone with a GIA report and an excellent cut.

Contact

Questions about natural diamonds?

For questions about diamonds, gemstones, a partnership or custom jewellery, get in touch directly. We will be glad to help.