Diamonds are hundreds of millions of years old. Their formation begins deep in the earth’s core where carbon-bearing materials are crystallized under tremendous heat and pressure and brought to the surface after deep volcanic eruptions. A diamond is chemically identical to carbon but not physically. Diamonds have an isometric cubic structure, like a honeycomb. It is this physical difference that miraculously allows a diamond to possess three extraordinary qualities:

Firstly, due to its unique physical structure, diamonds hold breathtaking optical characteristics. When cut into proper proportions, it is able to gather and reflect light in a beautiful shower of fire and brilliance.

Secondly, diamonds are the purest of all the world’s gemstones. They are composed of more than 99.95% pure carbon, making it the only mineral to be composed of a single element.

Thirdly, it is the hardest transparent substance known to man.

It is these qualities that have made the diamond the world’s most enduring, endearing, mystical, spiritual and most romanticized precious stones.

The early Egyptians believed that the “Vena Amoris”, the Vein of Love, runs directly from the heart to the top of the third finger of the left hand.


The first lady to officially receive a diamond ring for her engagement was Mary of Burgundy from Maximilian of Austria on August 17th, 1477. As the story goes, under council from his advisors, Maximilian proposed to Mary and gave her a ring set with a diamond and a gold ring and placed it on the third finger of her left hand. With her saying “yes”, a tradition was born.

Fluorescence is a glow–usually of a bluish colour–that emanates from some diamonds when exposed to ultraviolet light. In some cases, Fluorescence improves the colour of diamonds by about half a grade but this is an unnatural affect. At Butani, we recommend that our customers do not buy diamonds with fluorescence, as it is an imperfection. However, if you choose to, avoid diamonds with ‘strong to medium’ fluorescence as it may cause the diamond to appear milky or foggy even though there seems to be an improvement in colour. ‘Faint’ fluorescence does not affect the appearance of the diamond. In most cases diamonds with fluorescence are slightly cheaper than diamonds without.


In 1919, Marcel Tolkowsky, from a Belgian diamond cutting family, published “Diamond Design”, the first analysis of the proportions of diamond cutting based on modern theories of light dispersion. Working backwards from what he thought was the best possible balance of brilliance and dispersion, he was able to calculate the proportions of a perfect diamond: the “Ideal Cut” diamond. An Ideal Cut Round Brilliant diamond should have a 34.5° crown angle, a 40.75° pavilion angle, a 59.3% total depth (excluding girdle thickness), and a 53% table.


Every diamond is unique, and all the important qualities of your diamond should be certified in writing. All Butani diamonds are certified by our team of expert gemologists or by internationally recognized laboratories including: Gemological Institute of America (GIA), the Diamond High Council (HRD) from Antwerp-Belgium, European Gemological Laboratory (EGL), International Gemological Institute (IGI), and American Gemological Society (AGS).