(«Asscher Cut»)
The cut has the form approached to an octagon; type of a cut-step. Faceted stone usually has 49, 57 or 75 faces and consists of a platform surrounded by 3 tiers of trapezoidal crown faces (8 faces in a tier) and can consist of 3 to 5 tiers of trapezoidal pavilion faces (8 faces in a tier). In the old cuts there is a line caletta. In contrast to the emerald shape of the cut, facets wider and visually form a kind of diagonal cross.

The main elements of the step-cut " Asher"
(the parameters are specified for the optimal shape of the cut)

The calculation of the weight

The calculation of the weight (in carats) of the standard diamond cut «Asher» produced by the basic formula:

M = L x B x H x k

where M – weight of cut diamond, L – cut diamond length, В – the width of the diamond, H – the height of the diamond, k – the conversion factor of metric measurements through volume to mass, taking into account the geometry of the cut and the density of the diamond, equal to 0,0078.
More precisely, a weight is determined taking into account the amendments on the thickness of the girdle, the convexity of the cut, the size of the faces of the chamfers, the size of the caletta and the ratio of the proportions of the cut.

Cut design «Asscher Cut» it was developed in 1902 in the Netherlands (Netherlands) by Joseph Asher. The peak of the popularity of this cut occurred in the 1920-ies – the heyday of the jewelry style of «art deco». At this time, 50 and 58 facets (including kaletta) were applied to the stone. Again to gain popularity cut «Asher» began from the mid 1980-ies. At this time, the popular cut, consisting of 75 faces.