View online

Nature's Brilliant Colours
Newsletter No. 16 09/2013
Our News
Exciting Times!
Dear Customers, Readers and Friends,

A beautiful summer is slowly coming to an end. We are all stocked up and ready, once again, to continue supplying you with exceptional quality Natural Fancy Coloured Diamonds for your new collections.

We are very excited to welcome our new intern, Severin Keller, who will be bringing his support to the KULSEN & HENNIG team in Berlin. So, we are ready for the autumn / winter season to begin!

To help make your sales presentations even clearer for your customers, we have developed a new service providing images and texts on the theme of Natural Fancy Coloured Diamonds. Here you will find everything you should know on the subject.

The growing popularity of Natural Fancy Coloured Diamonds is reflected not only in increased customer interest, but also in the prices attained at auction. As red and pink diamonds are among the rarest of all diamonds, it is all the more impressive when several of these diamonds are auctioned at the same time.

Therefore, we would like to devote a new series about this particular type of trading – its history, development, fascination and, of course, its impact on world prices.

As it is well known that Natural Fancy Coloured Diamonds are rare, we thought it would be interesting to learn how new resources are developed and what enormous feats of engineering are behind them.

We hope you enjoy reading!

Juliane Hennig

Dominik Kulsen

KULSEN & HENNIG's New Offices
It is done! The KULSEN & HENNIG Team has moved into its new offices located in downtown Berlin-Mitte!

From now on, you can reach us at the following postal address:

POB 54 01 20
10042 Berlin

Telephone:    +49 (0)30 400 55 93 0
Fax:               +49 (0)30 400 55 93 29


If you would like to stop by, just let us know in advance. We look forward to seeing you!

Natural Coloured Diamonds – Our Knowledge at Your Service
Interest in Natural Fancy Coloured Diamonds has been growing steadily, yet surprisingly little is generally known about them. As specialists in this field, it is important for us to share our knowledge with our customers.

This is the motivation behind the creation of our ever so popular colour cards and the information we provide about Natural Fancy Coloured Diamonds in our newsletters and on our website.

Although the content of our website is not yet completely available in English, you can still obtain detailed overviews of diamond colours, the theories behind the colours and diamond mining, in English, by consulting our newsletter archives.

Sales presentations designed for laptop or tablet computers have become the standard, demonstrating increased customer interest in digital image and text materials about Natural Fancy Coloured Diamonds. Upon request, we will gladly send you files in print or e-mail versions and advise you in your choice of themes.

Telephone: +49 (0)30 400 55 93 0
From Our Collection:
Fancy Light Yellow – A 1.07 ct. Princess Cut Diamond
On a recent hot summer day in Berlin, I tasted a new ice cream flavour called “GUZIMI”. Now what in the world is that, you might ask? The answer is an original combination that takes its name from the German words for cucumber (GUrke), lemon (ZItrone) and mint (MInze).

The diamond we are presenting today reminds me of that hot summer day and that refreshing ice-cream flavour, with its fresh, light and cool colour.

This stone’s dimensions are: 5,35 x 5,32 x 4,15 mm and it has a clarity grading of VS.

We also have other princess stones in Fancy Light Yellow weighing between 0.10 and 1.07 ct.

If you are interested in our “refreshing” princess, please feel free to contact us:

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
Fancy Vivid Blue -  Sale Exceeds Expectations
The 25.5 ct Fancy Blue diamond from the Cullinan diamond mine in South African (see our Newsletter no. 15) has been sold. The value of the rough stone had been estimated at USD 10.000.000, but in June of this year, Petra Diamonds, the Cullinan mine operators, were able to sell it for USD 16.900.000, which is USD 600.000 per carat.

Johan Dippenaar, the Managing Director of Petra Diamonds, emphasizes how this extraordinary sales result demonstrates the importance of the Cullinan mine as the world’s largest source of blue diamonds.
In Brief: The Argyle Pink Jubilee Diamond in the Melbourne Museum
In our Newsletter no. 11, we reported the sensational discovery of the largest rough pink diamond ever found in Australia, the 12.76 ct. light pink Argyle Pink Jubilee. Originally, the diamond was to have been sold at the annual Argyle Pink Diamonds Tender for USD 10-20.000.000.

Due to its internal structure, however, this stone could only be partially cut and polished. Its current weight is 8.01 ct.

In 2012, Rio Tinto, the operator of the Argyle Diamond Mine, subsequently donated the Argyle Pink Jubilee diamond to the Melbourne museum. The diamond can be admired there as one of more than 3000 rare minerals and precious stones included in the extensive
 Dynamic Earth exhibition
Argyle Pink Diamonds Tender 2013 - Fancy Reds
On May 17, Rio Tinto announced an impressive record: for the first time, three diamonds with the absolutely exceptional Fancy Red colour grading will be sold at auction during this year’s Argyle Pink Diamonds Tender.

Of the three round diamonds, the two smaller ones weigh 0.20 ct and 0.58 ct., respectively. The largest among the three weighs 1.56 ct and is called the Argyle Phoenix, in honour of the recently opened Argyle Underground Mine. Read our article about the new mine in this newsletter. The Argyle Phoenix is the largest Fancy Red diamond ever offered at auction.

The rarity of the colour red among Natural Fancy Coloured Diamonds is demonstrated by the fact that in the 30 year history of the Argyle Diamond Mine, only six diamonds have been certified as Fancy Red by the Gemological Institute of America (GIA).

The Argyle Pink Diamonds Tender 2013 collection is made up of 58 pink diamonds, three blue diamonds and three red diamonds. All the stones were cut and polished by the Rio Tinto Master diamond cutters, acknowledged internationally for their expertise, precision and artistic flair.

After showings in Sydney, New York and Tokyo, the diamonds will be presented in Perth and Hong Kong. Bids will be accepted until 8 October and premium prices are expected to be offered for these diamonds. We are very excited about this event and will of course keep you updated on any new developments.

Auctions – Episode 1: From Antiquity to Modern Times
The sensational sales results obtained during auctions of rare Natural Fancy Coloured Diamonds have repeatedly caused a stir these last few years. The same was true this year: on 24 April, the Bonhams Auction House in London sold an exceptional Fancy Deep Blue 5.30 ct diamond for USD 7.300.000 – that is to say USD 1.800.000 per carat. The stone was bought by Graff Diamonds.

Auction sales of diamonds are a source of real fascination. Since the 1970s, when the two largest Auction houses, Sotheby’s and
, started to hold these sales, public interest in them has not abated. The first auctions brought Natural Fancy Coloured Diamonds into the public’s view and triggered growing enthusiasm for them. In the meantime, these auctions have come to hold decisive influence over the prices of diamonds.

We would like to take this evolution as an opportunity to develop the subject in more detail. In this first episode of our series, we will take a look at the history of auctions and the origins of the first auction houses.

Gemmology Corner
Rio Tinto – Official Opening of the Argyle Underground Mine
In our Newsletters no. 5 and no. 10, we reported on the activities and exceptional finds of the Argyle Diamond Mine in Western Australia. This mine is world famous for its production of champagne and pink diamonds, colours offered in our product range.

The operation of the mine was originally scheduled for 2017. But on 30 April, Rio Tinto, the Australian operator of the mine, announced the official opening of the Argyle Underground Mine.

The transition from open pit mining to underground mining will probably extend the mine’s activities until 2020. The Argyle Diamond Mine is the first mine in Western Australia to use a high-tech system known as “block caving” for underground mining.

You will receive our next newsletter in December 2013.

Earlier editions of our newsletter may be found in our newsletter-archive.

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