The “4C’s” determine the quality of the gems and are necessary in order to define a natural diamond.


The carat is the unit of mass for diamonds and it equals 0.2 grams. A carat is also divided in 100 points.


The highest valued gems are completely colorless because they are but a small percentage of those extracted. There are also Natural Fancy Color diamonds.


The physical-chemical characteristics determine the purity of a diamond. The absence of inclusions and irregularities is essential for the high quality of the diamond.


Per avere un’ottimale risposta alla luce un diamante deve essere tagliato in modo perfetto, rispettando rigidi calcoli matematici.

In order to respond perfectly to the light a diamond needs to be cut perfectly respecting rigid mathematical calculations.



Diamonds can be any color from variations of yellow and brown to pink, orange, grey, red, blue, green and even black.
Some of the most famous diamonds in the world, for example the Blue Hope diamond, the Moussaieff Red red diamond, the Pink Graff, are colored.
The presence of color is due to a low concentration of elements present during the formation process, that takes place with the crystallization of molecules of carbon under high pressure. The color yellow or orange is due to the presence of nitrogen atoms; the color green comes from natural radiation; the color blue is due to the presence of atoms of boron; the colors red and pink are a consequence of higher levels of pressure during formation.

Certifying Natural Fancy Color diamonds is a complex and delicate operation that needs the help of highly specialized laboratories to achieve top accuracy.

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Diamonds formed at 200 km depth, 2,5 million years ago. Their name originates from two Greek words: adamas (invincible) and diaphanes (transparent). Plato speaks of diamonds as the quintessence of gold and believed that the hardest part of the metal must have transformed into such a wonder. Rome is familiar with diamonds that arrive from India in the first century after Christ (b.C.). In the X century a small quantity of diamonds is found on the island of Borneo. Starting in the XVI century they are imported by the great Maritime Republics of Venice and Genoa and by the end of the same year

the diamond begin to be worn by women and set on jewels.
In the mid 1600 Jean-Babtiste Tevenier travels to India where he has a chance to visit the legendary diamond mines of Golconda and to bring back to Europe some large diamonds such as the famous “Bleu de France” sold to Louis XIV and the “Mazarins”, 18 splendid diamonds sold to the cardinal Mazzarino who left them to the Crown and to this day represent a real treasure. India remains the only diamond center of the world until the XVII century. In the second half of the ‘800 Russia and Africa take center stage.