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("Princess cut")
Cut of this species in projection onto the plane of the girdle is square-shaped (rarely of the rectangle). Faceted stone in the classic version is 49 (two chevrons), 57 (three Chevron) and 65 (four Chevron) faces. The crown may have a 25 or 33 facets (octagonal pad, the top eight wedges, four main facets of the crown in the form of a rhombus, the four triangular faces of the second tier, the four trapezoidal faces of the first tier or four triangular faces and the bottom eight wedges).The pavilion, depending on the number of "chevrons", may have from 24 to 40 sides (four triangular upper faces, the four main facets of the pavilion in the form of deltoid, from sixteen to thirty-two pairs of wedges chevrons). Possible deviations of the number of faces as in big, and in the smaller side.

The main elements diamond cut "Princess"
(measurements optimal cut shapes)

The calculation of the weight

Calculate the weight (in carats) diamond Princess-cut isometric shape for diamond is produced by the basic formula:

M = L x B x H x k

where M – mass cut diamond, L is the length of the faceted diamond, B – width of cut diamond, H – the height of the diamond, k – conversion factor metric measurements using the volume to mass, taking into account the geometry of the cut, and the density of diamond having a value of 0,00830.
When the weight (in carats) diamond cut "Princess" as distinct from isometric form, the value of k can vary from to 0,0105 0,0090 depending on the ratio of length to width of the stone.

The valuation of the diamond-cut shape Princess can be made based on the data for the respective cut price indices and price lists for form "Princess" (Princess shape): The GemGuide, Palmieri''s Market Monitor, and markups or discounts by price list Rapaport Diamond Report (pears shape) and IDEX Diamond Price Index (fancy shape).

More precisely, a weight is determined taking into account the amendments on the thickness of the girdle, bulge cut, size caletta, the ratio of the proportions of the cut.

Cut of this type, being a modification of the old French square cut diamond was developed in the late 1960-ies a group of cutters from Israel. Finally the name of the Princess was fixed for stones of this type cut in 1979, produced by the Igalo Perlman (Ygal Perlman), Betzalel Barn (Betzalel Ambar) and the original Itzkovich (Israel Itzkowitz). And Israel Itzkovich given priority in the development of the final form of this type of cut. Initially, the form was characterized by a 57 facets.Similar in style cut with 49 facets, created in the early 1970-ies was called "quadrillion" (the name was patented in 1977), but later the name "Princess" has spread to this modification cut.

Varieties of Princess cut

«Baguillion cut»«Quadrillion cut»«Nissen cut»