Podcast
Questions and Answers
What is craftsmanship in the context of diamonds?
What is craftsmanship in the context of diamonds?
- The care taken in the fashioning of a polished diamond (correct)
- The light reflection properties of the diamond
- The design of the diamond's shape
- The type of materials used in diamond production
Which of the following describes the purpose of a culet in a diamond?
Which of the following describes the purpose of a culet in a diamond?
- To prevent abrasion and chipping on loose diamonds (correct)
- To assist in grading the diamond's value
- To enhance the diamond's overall brightness
- To influence the diamond's pavilion angle
How is the girdle thickness percentage calculated?
How is the girdle thickness percentage calculated?
- As a percentage of the diamond's pavilion depth
- As a percentage of the overall weight of the diamond
- As a percentage of the diamond's total carat weight
- As a percentage of the average girdle diameter (correct)
What effect does a deep pavilion have on a diamond's appearance?
What effect does a deep pavilion have on a diamond's appearance?
Which factors are emphasized when grading a round brilliant diamond's brightness?
Which factors are emphasized when grading a round brilliant diamond's brightness?
What does the pavilion depth percentage indicate?
What does the pavilion depth percentage indicate?
What is the recommended approach to evaluating a diamond's appearance?
What is the recommended approach to evaluating a diamond's appearance?
How do thick girdles typically affect a diamond's perceived value?
How do thick girdles typically affect a diamond's perceived value?
What is typically true of diamonds with poor polish?
What is typically true of diamonds with poor polish?
Which statement is correct regarding the variations in diamond symmetry?
Which statement is correct regarding the variations in diamond symmetry?
A diamond’s pavilion makes a significant contribution to ............
A diamond’s pavilion makes a significant contribution to ............
An estimate of a diamond’s pavilion depth percentage is.........
An estimate of a diamond’s pavilion depth percentage is.........
Generally, the greater the pavilion depth percentage.........
Generally, the greater the pavilion depth percentage.........
Including design and craftsmanship in the cut grade gives a well-crafted diamond ......
Including design and craftsmanship in the cut grade gives a well-crafted diamond ......
The angle formed by the pavilion mains and the girdle plane is ...?
The angle formed by the pavilion mains and the girdle plane is ...?
The quality of the polish and precision of the cut of a fashioned gemstone.
The quality of the polish and precision of the cut of a fashioned gemstone.
The size of the facet at the bottom of the diamond where the pavilion mains meet is .....?
The size of the facet at the bottom of the diamond where the pavilion mains meet is .....?
The length of the lower half facets expressed as a percentage of the total distance between the girdle and the culet is .......
The length of the lower half facets expressed as a percentage of the total distance between the girdle and the culet is .......
A diamond’s physical shape, including its proportions and durability, determined by decisions made during the fashioning process.
A diamond’s physical shape, including its proportions and durability, determined by decisions made during the fashioning process.
How do steep pavilion angles affect appearance?
How do steep pavilion angles affect appearance?
Flashcards
Pavilion Depth Percentage
Pavilion Depth Percentage
Distance from girdle to culet, expressed as a percentage of girdle diameter.
Pavilion Angle
Pavilion Angle
The angle pavilion angle forms with girdle plane.
Culet Size
Culet Size
Size of the facet at the diamond's bottom.
Diamond Finish
Diamond Finish
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Diamond Design
Diamond Design
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Craftsmanship
Craftsmanship
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Girdle Thickness Percentage
Girdle Thickness Percentage
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Lower Half Length Percentage
Lower Half Length Percentage
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Diamond Brightness
Diamond Brightness
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Diamond Appearance
Diamond Appearance
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Study Notes
Diamond Key Terms
- Craftsmanship: The care taken in polishing a diamond, judged by its finish.
- Culet Size: The facet size at the base where the pavilion meets.
- Design: A diamond's physical shape, considering proportions and durability.
- Finish: The quality of the polish and precision of the cut.
- Girdle Thickness Percentage: Girdle thickness as a percentage of the average girdle diameter.
- Lower Half Length Percentage: Length of the lower half facets as a percentage of the distance between the girdle and culet.
- Pavilion Angle: The angle formed by the pavilion mains and girdle plane.
- Pavilion Depth Percentage: Distance from the girdle to the culet as a percentage of the average girdle diameter.
Diamond Key Concepts
- A diamond's pavilion significantly affects brightness and fire.
- An estimate of pavilion depth percentage is usually accurate for grading and appraisal.
- Generally, a deeper pavilion means a steeper pavilion angle.
- A culet prevents abrasion and chipping on loose diamonds.
- Cuteness design and craftsmanship play a part in the cut grade, signifying quality.
- Diamonds with thick girdles, steep crowns, or deep pavilions may appear smaller than expected.
- Poor polish can diminish a diamond's appearance.
- Symmetry variations in most diamonds have little visual impact.
- Table percentage, crown angle, and pavilion angle are crucial for brilliance in round brilliant diamonds.
- Diamond value should be assessed by aesthetics alongside numerical parameters.
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