(«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.
("Baguette cut")
Cut in the plane of the girdle has a shape of rectangle or trapezium (in accordance with the name – "baguette rectangular", "baguette trapezoid"), type cut – speed. Faceted stone in a classic performance has 33 facets and consists of a platform surrounded by 3 tiers trapezoid crown facets (4 facets in the tier) and the 4 tiers trapezoid pavilion facets (4 facets in the tier). In the old cuts there is a line caletta.
Cut in the plane of the girdle has the form of a pear cut diamond. Faceted stone in a classic performance has 56 facets, 33 facets of the crown (octagonal platform with eight wedges of the upper crown, the seven main facets of the crown in the form of a rhombus, one main face in the form of deltoid, sixteen pair of lower wedges), 23 the pavilion facets (sixteen pairs of wedges of the pavilion and the seven main facets of the pavilion in the form of deltoid).
("Emerald cut")
Cut in the plane of the girdle has a shape of rectangle with chamfered corners, cut – speed. Faceted stone in the classic version has 65 facets and consists of a platform surrounded by 3 tiers trapezoid crown facets (8 facets in the tier) and the 4 tiers trapezoid pavilion facets (8 facets in the tier). In the old cuts there is a line caletta.
(CR-57, "Standard Round Brilliant cut", "Round Brilliant cut")
Cut of this kind has a circular plan shape, the type of the cut diamond (wedge-shaped). Faceted stone has 57 facets, 33 facets of the crown (octagonal pad, the top eight wedges, eight main crown facets of the diamond-shaped, sixteen pairs of wedges) and 24 facets of the pavilion (sixteen pairs of wedges and eight main facets in the form deltoid).
(The"Cushion Brilliant cut")
Cut in the plane of the girdle is oval in shape with high and very high "shoulders" or rounded rectangle cut – diamond (classic and modified). This category also include the majority of diamonds are old cut ("Old mine cut"). Faceted stone in a classic performance has 57 facets, 33 facets of the crown (octagonal platform with eight top wedges, eight main crown facets of the diamond-shaped, sixteen pairs of wedges) and 24 facets of the pavilion (sixteen parasang wedges and eight main facets in the form deltoid).
(M-55, "Marquis", "Boat", "Marquise Cut", "Navette Cut")
Cut has the shape of dvupolnye, which explains its second name – "Boat", the type of the cut diamond (wedge-shaped). Faceted stone has 55 facets, 33 facets of the crown (octagonal pad, the top eight wedges of the crown, six main facets of the crown in the form of a rhombus, the two major faces in the form of deltoid, sixteen pair of lower wedges), 22 the pavilion facets (sixteen pairs of wedges of the pavilion and six main pavilion facets in the form deltoid).
Sometimes there are modifications to the 57th faces.
(Ov-57, "Oval cut")
Cut this in plan view is a shape of an oval, cut – diamond (wedge-shaped). Faceted stone has 57 facets, 33 facets of the crown (the area of an octagonal shape, eight of the upper wedges of the crown, eight main crown facets of the diamond-shaped, sixteen pair of lower wedges of the crown) and 24 facets of the pavilion (sixteen pairs of wedges of the pavilion and eight main pavilion facets in the form deltoid).
("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.
("Radiant cut")
Cut this species is a hybrid modification of the old French square-cut and Emerald (a kind of cut Asher). Cut "radiant" is usually from 61 to 77 facets, including 8 girdle facets. It is also possible and a greater number of faces.
Standardized in Russia varieties of cut "Radiant" are from 65 to 89 faces.
Shestidesyatiletiya cut ("RA 65") has 25 faces of the crown (one octagonal face of the ground, 8 wedges of the crown, eight triangular faces of the second tier of the crown, eight trapezoidal faces of the first tier of the crown), 32 the pavilion facets (four pentagonal top face pavila, four main facets of the pavilion in the form of deltoid, twenty-four triangular facets chevrons) and eight edges of the girdle.
(Se-57, "Heart-Shaped Modified Brilliant", "Heart cut")
Cut this kind has the shape of an oval with high or very high "shoulders" or rounded rectangle, type-cut – diamond (classic and modified), and this type include diamonds old cut diamonds, ("Old mine cut"). Faceted stone in a classic performance has 57 facets, including the octagonal pad, the top eight wedges of the crown, nine main facets of the crown in the form of a rhombus, sixteen pairs (bottom) wedges of the crown, sixteen pairs of wedges of the pavilion and the seven main facets of the pavilion in the form of deltoid.Possible options for the cut and with a different number of faces.
("Trillion cut")
Cut "a Trillion" is a modification of the brilliant cut, combining the diamond with a triangular shape in projection onto the plane of the girdle. Depending on the characteristics of the cut to distinguish the varieties of "trilliant", "triangle", "Trigon". Trillion cut is usually the total number of faces from 31 to 52.Standardized in a form "Trilliant pyatidesyatimetrovy (T-52)" has 25 faces of the crown (1 face pad, 6 faces an upper triangular wedges of the crown, 6 of the main faces of the crown in the shape of a rhombus and deltoid, 12 faces of the lower pair of wedges in the form of a triangle) and 15 of the pavilion facets (3 main facets of the pavilion in the form of deltoid and 12 wedges of the pavilion in the shape of a triangle), the other 12 have facets cut on the surface of the girdle.