Elliptical Facet Layout for Gemstone Brilliance and Color
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Solution Overview
Problem
Existing gemstone cutting methods struggle to achieve both desirable brilliance and enhanced natural color simultaneously.
Innovation Solution
A gemstone design comprising a girdle, crown, and pavilion with specific facet arrangements, including star, intermediate, and main facets, aligned at precise angles to optimize brilliance and color enhancement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If facets are arranged to maximize brilliance, then light reflection is improved, but color enhancement deteriorates
Solution Approach 1:
The patent applies local quality by creating different facet zones with distinct functions: upper girdle facets (including star, upper intermediate, and lower intermediate facets) are optimized for brilliance through specific angle ranges (15-30 degrees from horizontal), while main pavilion facets are optimized for color enhancement through different angle ranges (40-55 degrees from horizontal). This spatial differentiation of facet properties allows simultaneous optimization of both brilliance and color enhancement in different regions of the gemstone.
2Illumination intensity
If specific facet angles are used for brilliance, then sparkle is improved, but natural color enhancement worsens
Solution Approach 1:
The patent employs parameter changes by defining specific angle ranges for different facet types rather than single precise angles. Upper girdle facets include star facets at 15-25 degrees, upper intermediate facets at 20-30 degrees, and lower intermediate facets at 25-30 degrees from horizontal. Main pavilion facets are set at 40-55 degrees from horizontal. These range-based parameters provide manufacturing flexibility while maintaining optical performance, reducing the complexity of achieving precise sparkle and color enhancement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves a balance between brilliance and color enhancement, providing a visually appealing and aesthetically superior gemstone.
Implementation Method 1
Some gemstones are designed/cut to produce a desirable amount of brilliance, or 'sparkle' by forming or cutting a number of individual facets on the exterior surface of the gemstone
Implementation Method 2
Some gemstones are designed/cut to produce a desirable amount of brilliance, or 'sparkle' by forming or cutting a number of individual facets on the exterior surface of the gemstone
Data Source
AI summary
A gemstone includes a crown, a pavilion, and a girdle disposed between the crown and the pavilion. The girdle has an elliptical cross-section with a major axis and a minor axis. The surface of the gemstone is generally divided into a number of groups of interlocking facets disposed at a variety of angles. The groups of facets comprising the surface of the crown generally include star facets, upper intermediate crown facets, lower intermediate crown facets, main crown facets, and upper girdle facets. The upper girdle facets generally abut an upper edge of the girdle. The groups of facets comprising the surface of the pavilion include culet-adjacent facets, candle facets, main pavilion facets, and lower girdle facets. The lower girdle facets generally abut a lower edge of the girdle.