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Nature's Brilliant Colours
Newsletter No. 18 02/2014
Our News
Shadows and Light!
Dear Customers, Dear Friends,

Welcome to a New Year!
Welcome to the INHORGENTA MUNICH Fair!

The colour gray definitely triggers contradictory feelings; do you associate it with not only boredom and monotony but also with elegance and discretion?

This year, we are focusing on gray as a diamond colour and we hope to show you the diversity offered by this fascinating colour. Prepare to be surprised by a gray diamond of exquisite purity and clarity and find inspiration for your collections with lively “Naats”.

We will also answer your questions about how gray affects us and explain the origins of gray colour in diamonds.

You might just be surprised at what gray can do!

Juliane Hennig

Dominik Kulsen

We cordially invite you to come visit us at our stand at INHORGHENTA MUNICH 2014 from 14 – 17 February.

Take this opportunity to discover our entire range of Natural Fancy Coloured Diamonds and experience the discreet charm of our gray diamonds for yourself. Our new colour chart for gray diamonds is ready and waiting for you.

We look forward to your visit!


You can find us at the Munich Trade Fair Centre:

Our New Colour Grading Card: Gray
This year, we are pleased to present our new colour card for versatile and elegant gray diamonds. After our colour cards for champagne, yellow, pink and orange diamonds, this newest card is the fifth in our series.

This card also provides support during customer meetings and makes giving an accurate description of a diamond’s colour much easier. Based on recognized GIA terminology, the card shows colour graduation from Fancy White to Fancy Light Gray to Fancy Dark Gray, and includes Fancy Brownish Gray and Fancy Dark Brownish Gray shades as well.

We have included brown as a modifying colour because it is so common in gray diamonds. Pure gray diamonds are extremely rare in nature. On the back of the card, you will find key facts about the origin of the colour gray in diamonds.

To download the colour grading card, click
From Our Collection:
A 4.52 ct Round Brilliant Cut Fancy Light Gray Diamond (GIA)
Today, we are presenting a real eye-catcher!

This elegant, soft-gray stone is impressive enough for its size alone. But its colour, graded by the Gemological Institute of America as Fancy Light Gray, is also very impressive for a gray diamond of this size. Indeed, one or more modifying colours are usually visible in most gray Natural Fancy Coloured Diamonds. 

For us, this diamond would be perfect for an exclusive piece of jewellery, whether as a pendant or as a fascinating solitary ring. Treat yourself to this rare piece of nature! If you are interested in this stone, please contact us or come see it for yourself at our stand at INHORGHENTA MUNICH.

Our office in Berlin, Germany
Telephone: +49 (0)30 400 55 93 0

Our office in Winterthur, Switzerland

Telephone: +41 (0)52 212 24 40

All about Natural Coloured Diamonds
A Steel-gray Beauty
At the Baselworld 2013 trade show, the Siegelson diamond company presented a diamond ring from the Art Deco period (ca. 1925) whose beauty and charm immediately captivated us. The ring is adorned with a 10.67 ct emerald cut gray diamond, mounted in a platinum prong setting.

The Swiss diamond laboratory Gübelin noted in its study of this stone that diamonds of this size in such a pure steel-gray colour are extremely rare. The laboratory describes the stone as being an octagonal step cut, with SI1 purity and a Fancy Gray colour.
The Fascinating Diversity of Gray
All of the colours that exist between pure white and pure black are known as grayscale. The human eye is able to distinguish 500 shades of gray.

Gray is a colour that features countless shades and hues that bring shapes and contours to our world.
Naats – A Gray with Vivid Brilliance
In the diamond trade, different qualities of gray diamonds are available. One of them is known as Naats.

The origin of the term Naats is unclear, but is used to refer to colourless diamonds with large, dark inclusions that are evenly distributed in the stone and clearly visible to the naked eye. They are also sometimes called “White Naats”, referring to the fact that these diamonds are colourless. When Naats are viewed, their coloured inclusions cause a gray colour effect.

Naats occur in many shades of gray. The colour palette ranges from light silver gray to medium gray to dark anthracite. Well cut and carefully selected Naats have an attractive, lively brilliance.

For jewellery designers, Naats are quite attractive because of their vibrant effect and their affordable price. Goldsmiths have developed two apt names for Naats: “salt and pepper” and “Dalmatian diamonds”.

Incidentally, Rio Tinto, operator of the Argyle diamond mine, sells its gray, inclusion-rich diamonds as “Silvermist Diamonds” and has even developed its own line of jewellery for them.

Gemmology Corner
Diamond Colours: Gray
Gray is considered as a colour stimulus, darker than white and lighter than black, but does not produce a coloured impression. Gray is a colour with “no colour”, otherwise known as achromatic.

The colour gray offers an amazing variety of shades and hues that can also be found in gray diamonds.
You will receive our next newsletter in June 2014.

Earlier editions of our newsletter may be found in our
KULSEN & HENNIG GbR I POB 54 01 20 I DE-10042 Berlin I T +49 (0)30 400 55 93 0 I
DOMINIK KULSEN AG I POB 2033 I CH-8401 Winterthur I T +41 (0)52 212 24 40 I