The Role of Depth Percentage in Diamond Valuation Depth percentage is the primary data point visualized on the y axis for diamonds , serving as a key indicator of the stone’s cut quality. 1% - 66% Very Good 66.
Precise 3D Mapping Y Axis Diamond Data
Even if the depth is ideal, poor symmetry can skew the light performance, causing the diamond to tilt off-axis and leak light asymmetrically. The ideal range generally falls between 59% and 62%, where the stone achieves an optimal balance of weight retention and optical performance.
Conversely, a stone with a depth percentage that is too low will look wider and shorter, often causing light to leak out of the bottom, which diminishes brilliance. Advanced Analysis and Symmetry Considerations Professional grading reports include the depth percentage, but the y axis analysis is often combined with evaluations of symmetry and polish.
Precise 3D Mapping Y Axis Diamond Data
This level of scrutiny is what separates certified gemological standards from mere visual inspection. Modern imaging technologies allow for precise 3D mapping of the y axis data, providing a detailed view of how the diamond’s proportions adhere to mathematical ideals.
More About Y axis for diamonds
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