Siteseen Logo

Allnatt Diamond

Diamonds are Forever...
We focus on facts to ensure you have the information to make the right choices when buying diamonds. Sit back and watch our videos or read our articles to get the whole story. Our impartial advice will help you make the right decision, because Diamonds are Forever...

Description of the Allnatt Diamond
The Allnatt is one of the most famous and largest diamonds in the world. The Allnatt weighed 102.07 carats when first cut and 101.29 carats after being re-cut. The type of cut of the Allnatt diamond is a Cushion Cut. A cushion cut consists of a four sided deep square or rectangle cut with rounded edges and large facets with a cushioned shaped girdle. The color of the diamond has been classified as Fancy Vivid yellow which is extremely rare (only a handful of diamonds exist that weigh over 100 cts. with such a strong color). The current setting for the Allnatt diamond is a brooch which was designed by Cartier. It is set in a platinum flower with five petals, a stem and two leaves, all set with brilliant cut diamonds.

Origin of the name of the Allnatt Diamond
The Allnatt Diamond was named after its first known owner, Major Alfred Ernest Allnatt.

History of the Allnatt Diamond
The Allnatt diamond was purchased in the 1950's by Major A E Allnatt. T he Allnatt diamond brooch was then auctioned by Christies in May 1996 when the diamond sold for $3,043,496. Between June 27, 2003 to September 15, 2003 the Allnatt diamond was featured in the Splendour of Diamonds exhibit at the Smithsonian Museum.
The present owner of the gem is the SIBA Corporation. 

Where the Allnatt Diamond was found
There is some confusion relating to exactly where and when the Allnatt was discovered but most experts believe that it was found in the De Beers Premier Diamond Mine.

Diamonds are Forever...
An Impartial Guide to Diamonds

Information about the Premier Diamond Mine
The Premier Diamond Mine is a South African underground diamond mine which is owned by De Beers and established in 1902. The mine is situated in the town of Cullinan which is located 40 kilometres east of Pretoria in the Gauteng Province of South Africa. The famous Cullinan Diamond was also found at the Premier Diamond Mine in 1905. One hundred years after its opening, in November 2003, the Premier Diamond Mine was renamed the Cullinan Diamond Mine to celebrate its centenary.

How the Allnatt Diamond was formed
The De Beers mine in South Africa, where the Allnatt diamond was found, is situated on an ancient volcanic pipe. Diamonds are formed when extreme heat and extreme pressure cause carbon atoms to crystallize forming diamonds approximately ninety miles under the earth's surface. Diamonds reach the surface of the earth via volcanic pipes, or channels.

Yellow Diamonds
Colored diamonds contain impurities or structural defects that cause the coloration. The most common impurity, nitrogen, causes a slight to intense yellow coloration depending upon the type and concentration of nitrogen present. Natural yellow diamonds contain the element nitrogen (N).

Major Allnatt
Major Alfred Ernest Allnatt, a British Millionaire was well known as a sporting man, owning many racehorses, a benefactor and a patron of the arts. His generosity and patronage can be illustrated by his involvement in a famous Rubens painting. In 1959 Major Allnatt bought the 1634 painting of the Adoration of the Magi by Peter Paul Rubens (Flemish Baroque Era Painter, 1577-1640) from the estate of the Duke of Westminster for a record 275,000. In 1961 Major Allnatt presented the painting of Adoration of the Magi by Rubens to King's College Chapel at Cambridge University, England. The painting measures 4.2 metres high by 3.2 wide. The painting by Caravaggio called  `Salome with the Head of St John the Baptist' was bought in 1970 from Major AE Allnatt by the National Gallery in London.

The Allnatt Diamond
The above history details important historical events and dates. Fascinating information about the history of the  stone providing comprehensive facts, information and about the history of the famous gem.

Famous - Precious - History - Stone - Guide - - Facts - Information -Info
History  - Premier Diamond Mine - & History - History

Diamonds Index

Privacy Statement

Cookie Statement

2017 Siteseen Ltd