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US 2015/0305451 A1Published application
Novel arched gemstone and method of manufacture
AssigneeDavidor, LLC
InventorsDavid S. Gusky, Stephan Wolzok, Dominique Leopold Dufermont
Life of this patent
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Abstract
A diamond, which has a step-cut arched configuration on one end and a baguette-style configuration on the other, comprising a girdle, a top or crown above the girdle, and a pavilion or base below the girdle. The crown terminates in an upper planar surface known as a “table,” which is generally parallel to the girdle plane. The arched end is comprised of step-cut crown facets that are preferably arranged about a common center, and upstanding pavilion facets that are also preferably arcuately arranged about the common center. The pavilion also includes a large, arched window facet.
Claims32
An arched diamond, comprising:
- a generally planar table lying in a table plane;
- a circumferential girdle lying in a girdle plane, the table plane being substantially parallel to the girdle plane;
- a first end of the diamond being substantially square and including a first-end crown section defined by first, second and third parallel step-cut crown facets lying between the table and girdle;
- a second, arched, end of the diamond being arched shaped and including a crown section defined by a series of angularly arranged step-cut facets arranged radially about a common center;
- the first end of the diamond including a first-end pavilion section, lying between the girdle and a culet, defined by first, second, third and fourth rows of step cut first-end pavilion facets forming, together with the first end crown section, a baguette style end;
- the second end of the diamond including a second-end pavilion section, lying between the girdle and the culet, comprised of:
- first, second, third and fourth step cut second-end pavilion facets, and
- one or more upstanding pavilion facets arranged in an arcuate manner about said common center;
- the first second-end pavilion facet being characterized as forming an enlarged window defined at least in part by an arcuate upper rib line, said upper rib line being bounded above by said one or more upstanding pavilion facets and below by the first second-end pavilion facet.
6 more elements
An arched diamond, comprising:
- a table lying in a table plane;
- a girdle lying in a girdle plane, the girdle plane being substantially parallel to the table plane;
- the diamond being comprised of a first end and a second end;
- the first end being comprised of a first-end crown section and a first-end pavilion section;
- the second end being comprised of a second-end crown section and a second-end pavilion section;
- the first-end crown section being comprised of:
- a portion of the table, and first, second and third rows of first end step-cut crown facets, the first row being oriented at a first break angle relative to the girdle plane and being arranged along a rectangular periphery of the first end of the diamond, the second row being oriented at a second break angle relative to the girdle plane, and the third row being oriented at a third break angle relative to the girdle plane;
- the first end pavilion section being comprised of:
- first, second, third and fourth rows of first end step-cut crown facets, the first row being oriented at a first break angle relative to the girdle plane and being arranged along a rectangular periphery of the first end of the diamond, the second row being oriented at a second break angle relative to the girdle plane, the third row being oriented at a second break angle relative to the girdle plane, and the fourth row being oriented at a fourth break angle relative to the girdle plane;
- the second-end crown section being comprised of:
- a continuation of the table, and a series of angularly arranged step-cut facets arranged radially about a common center;
- the second-end pavilion section being comprised of:
- first, second, third and fourth step cut second-end pavilion facets, and
- one or more upstanding pavilion facets being arranged in an arcuate relationship about said common center;
- the first second-end pavilion facet being characterized as forming an enlarged window defined at least in part by an arcuate upper rib line, said upper rib line being bounded above by said one or more upstanding pavilion facets and below by the first second-end pavilion facet.
12 more elements
Dependencies are inferred from the claim text.