Diamond Shapes and Cut

• History of the various shapes
• History of the brilliant cut
• Old cuts
• Recent cuts
• Small stones
• Brilliant and fancy cut
• Step cut
• Rose cut
• The principal shapes of diamond
• Videos of the principal shapes of diamond
• The number of facets of the principal shapes

History of the various shapes

At the Middle Ages, they cut only the outsides faces of a stone. They levelled the faces. This method was very practised by the Hindus.

In 1919, Tolkowsky published the ideal proportions of a diamond. This cut counted 58 facets: the table, 32 facets between the table and the girdle and 24 facets between the girdle and the culet. This cut is regarded as the base of the modern cut.

In 1925, Johnson and Roesch published the proportions of another cut which did not have much success. This cut was called « ideal brilliant ».

In 1939, Eppler invented the cut « fine practice » which approached that of Tolkowsky.

In 1951, Parker invented a new cut which had the characteristic to have a very large spread out table.

In 1963, discovered « Princess » cut which comprises 74 facets.

In 1965, discovered « high lights » cut which comprises 146 facets.

In 1966, Tillander published the standards of the Scandinavian standart. This nomenclature is used as a basis for the modern cut.

In 1970, discovered « Royal 144 » cut which comprises 144 facets.

In 1978, IDC (International Diamond Council) defines the standards which gives to diamond the most refraction.

History of the brilliant cut

Old cuts

Recent cuts

Small stones

Brilliant and Fancy Cut

Step cut

Rose cut

The principal shapes of diamond

Videos of the principal shapes of diamond

The number of facets of the principal shapes

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