A method for producing a gemstone, in particular a diamond, in the shape of a star with several arms, said method comprising the steps of: - Providing a basic, brilliant cut gemstone, said gemstone comprising a basic crown, a basic pavilion and a basic girdle joining the basic crown and the basic pavilion and defining a plane, - Cutting a plurality of facets (a, b, c, d, e, f, g, h, i) in the respectively basic crown, pavilion and girdle, to obtain a transformed gemstone delimited by a periphery, and - Laser cutting the periphery of said transformed gemstone to produce the star shape, wherein successively: - there is cut over the entire periphery of the basic girdle a plurality of adjacent facets (i), the number of which matches the number of arms of the star, said adjacent facets (i) being of the same dimensions and substantially perpendicular to the plane of the basic girdle, the junction between the adjacent facets (i) forming edges, - there is cut a plurality of facets (a, b, c, d, e, f, g) in the respectively basic crown and pavilion, - between the edges, cavities are laser cut to form hollow portions between the arms of the star, wherein the star includes five arms offset by an angle of 108°, wherein a pentagonal-shaped table is cut in the basic crown, wherein there is also cut in the basic crown: - a first series of five facets (a) each sharing one side with a side of the pentagon, - a second series of five rhombus facets (b) each sharing a vertex with a vertex of the pentagon and two sides with adjacent facets (a) of the first series, - a third series of ten triangular facets (c) each sharing one side with a rhombus facet (b) of the second series, and, optionally, - a fourth series of five quadrangular facets (d) each sharing a vertex with a rhombus facet (b) of the second series and two sides with adjacent triangular facets (c) of the third series, wherein there is cut in the basic pavilion: - a fifth series of five quadrangular facets (e) at the centre of the pavilion forming a first star, - a sixth series of five quadrangular facets (f) describing a second star around the first star, - a seventh series of five quadrangular facets (g) each sharing a vertex with a quadrangular facet (e) of the fifth series, - an eighth series of ten triangular facets (h) each inserted between a quadrangular facet (f) of the sixth series and a quadrangular facet (g) of the seventh series. - Providing a basic, brilliant cut gemstone, said gemstone comprising a basic crown, a basic pavilion and a basic girdle joining the basic crown and the basic pavilion and defining a plane, - Cutting a plurality of facets (a, b, c, d, e, f, g, h, i) in the respectively basic crown, pavilion and girdle, to obtain a transformed gemstone delimited by a periphery, and - Laser cutting the periphery of said transformed gemstone to produce the star shape, - there is cut over the entire periphery of the basic girdle a plurality of adjacent facets (i), the number of which matches the number of arms of the star, said adjacent facets (i) being of the same dimensions and substantially perpendicular to the plane of the basic girdle, the junction between the adjacent facets (i) forming edges, - there is cut a plurality of facets (a, b, c, d, e, f, g) in the respectively basic crown and pavilion, - between the edges, cavities are laser cut to form hollow portions between the arms of the star, wherein a pentagonal-shaped table is cut in the basic crown, wherein there is also cut in the basic crown: - a first series of five facets (a) each sharing one side with a side of the pentagon, - a second series of five rhombus facets (b) each sharing a vertex with a vertex of the pentagon and two sides with adjacent facets (a) of the first series, - a third series of ten triangular facets (c) each sharing one side with a rhombus facet (b) of the second series, and, optionally, - a fourth series of five quadrangular facets (d) each sharing a vertex with a rhombus facet (b) of the second series and two sides with adjacent triangular facets (c) of the third series, - a first series of five facets (a) each sharing one side with a side of the pentagon, - a second series of five rhombus facets (b) each sharing a vertex with a vertex of the pentagon and two sides with adjacent facets (a) of the first series, - a third series of ten triangular facets (c) each sharing one side with a rhombus facet (b) of the second series, and, optionally, - a fourth series of five quadrangular facets (d) each sharing a vertex with a rhombus facet (b) of the second series and two sides with adjacent triangular facets (c) of the third series, wherein there is cut in the basic pavilion: - a fifth series of five quadrangular facets (e) at the centre of the pavilion forming a first star, - a sixth series of five quadrangular facets (f) describing a second star around the first star, - a seventh series of five quadrangular facets (g) each sharing a vertex with a quadrangular facet (e) of the fifth series, - an eighth series of ten triangular facets (h) each inserted between a quadrangular facet (f) of the sixth series and a quadrangular facet (g) of the seventh series. - a fifth series of five quadrangular facets (e) at the centre of the pavilion forming a first star, - a sixth series of five quadrangular facets (f) describing a second star around the first star, - a seventh series of five quadrangular facets (g) each sharing a vertex with a quadrangular facet (e) of the fifth series, - an eighth series of ten triangular facets (h) each inserted between a quadrangular facet (f) of the sixth series and a quadrangular facet (g) of the seventh series.