Cutting of a diamond takes extreme precision and patience.
Perfectly cut diamonds will reflect light entering from the top or "table," refract the light in a balanced manner throughout the diamond, and exit the light back out through the top portion of the diamond.
The quality of a diamonds cut and its proportions can have a significant effect on its price.
How sparkly diamonds are is described as thier Brilliance, Scintillation and Fire.
- is an essential attribute of a beautiful diamond and has 2 components; brightness and contrast.
•Most Brilliant: Round. The modern round brilliant consists of 58 facets; 33 on the crown (the top half above the middle of the stone) and 25 on the pavilion (the lower half below the girdle).
•Extremely Brilliant: Oval, Marquise and Pear.
•Very Brilliant: Heart and Princess.
•Brilliant: Cushion, Emerald, Asscher and Radiant.
•Less Brilliant: Baguette cut.
-is the intense sparkles in a diamond as it moves. Ideally a diamond has many pleasing flashes spread across the surface of the stone, with few dull dead patches.
- or dispersed light appears as flashes of rainbow colours.