The Eightstar Diamond & The Firescope

What Is A Perfect Diamond?
Experts agree it is a diamond crafted to give maximum light return.
This means that all light entering a diamond is reflected back out through
the crown ( the whole top) of the diamond. This results in a mass of colours
(fire) dispersing from the diamond.

How Can You Tell If A Brilliant cut Diamond Is Perfect?
Until 1984 you couldn’t. Craftsmen cut to preferred proportions, assuming
the end result would be a perfect diamond. In 1984 a Japanese inventor,
invented a light tracking instrument called the Firescope, it showed that most
“ideal“ cuts were far from ideal. The reason why is that light leaked from the
sides of the diamond - diminishing their brilliance & fire.

How Did This Change The Way Diamonds Are Cut?
In 1984, the Firescope was used to develop the only cutting method that
guarantees absoloute 100% light return for every brilliant cut diamond it
is used to fashion.
This perfectly performing Brilliant cut diamond is called the Eightstar.

Why Is It Called The Eightstar?
The Eightstar is named after its distinctive eight rayed pattern seen in the Firescope.

How Does The Firescope Work?
The Firescope is measuring how much light is being returned to your eye. If a
diamond has been cut to perfect proportions the diamond will appear red in the
Firescope. If there is any white colour, this is an indication that light is “leaking” through
the diamond. You can view this by looking through the viewing lens at the top of the
Firescope, the diagram below demonstrates how this works;

What Do You See In The Firescope?

WHITE: Light is exiting the bottom of the diamond, “leaking”.
(Pink is NOT an indication of light leakage).

RED: Light is exiting the top of the diamond in every direction
except for straight up.

BLACK: Light is exiting the top of the diamond STRAIGHT UP, reflecting
the lens or eyepiece above it. In “normal” lighting conditions, the
black arrows are brilliant to the eye like the red & pink area’s.

Examples: The Eightstar Diamond Is On The Far Left

To learn more about the Eightstar diamond, and for information on diamonds in general,
Please visit the Eightstar Website: http://www.eightstar.com