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4C's


4 C ’ s OF DIAMOND VALUE

1. CARAT (WEIGHT)
2. CLARITY (PURITY)
3. COLOR (TRANSPARENCY AND TONE)
4. CUTTING (POLISHING)
 




CLARITY
(PURITY)

ANY IMPURITIES, FLAWS, OR ADDITIONAL CHEMICAL OR MATERIAL IN THE DIAMOND REDUCES ITS VALUE. THE IDEAL DIAMOND APPEARS PURE AND FLAWLESS UNDER 10X MAGNIFICATION.











COLOR
( TRANSPARENCY AND TONE )

 

DIAMONDS IN NATURE MAY BE
TRANSPARENT OR OPAQUE, AND MAY HAVE SOME COLOR (WHITE, BLUE, YELLOW, MULTICOLORED ) FOR FINE GEMS, THE IDEAL IS COLORLESS ( OR NEARLY COLORLESS ) AND TRANSPARENT. COLORED DIAMONDS ARE UNIQUE AND VERY RARE, SO THEY ARE NOT CLASSIFIED IN THE 4 C SYSTEM.
 


CUTTING
 ( POLISHING )

 

THE STANDARD PROFESSIONAL
CUTTING PRODUCES A 56-FACET AXIALLY SYMMETRIC DIAMOND, WITH ALL FACETS PROPORTIONATELY EQUAL. THE CLOSER A DIAMOND IS TO THIS CUT, THE MORE VALUABLE IT WILL BE. OTHER STYLES OF CUTTING MAY PRODUCE A HEAVIER STONE, BUT THE VALUE WILL BE LESS THAN A STANDARD CUT STONE OF THE SAME WEIGHT.
 


 
 


CARAT
(WEIGHT)


 

1 CARAT  =  200 mg
0.75 CT    =  150 mg
0.50 CT    =  100 mg
2 x HALF A CARAT
                 =  1 CARAT

TWO HALF CARAT DIAMONDS ARE WORTH LESS THAN ONE FULL CARAT DIAMOND OF THE SAME QUALITY.

FOR AN EASY EXAMPLE, IN SIZE A HALF - CARAT DIAMOND IS ABOUT THE SAME AS A POPCORN KERNEL.

THE WORD “CARAT” SPACE COMES ORIGINALLY FROM THE SEED OF
THE CAROB TREE.



 














EFFECT OF CUTTING ON BRILLIANCY AND SPARKLE

THE STANDARD CUT IS DESIGNED TO MAXIMIZE THE BRILLIANCE
AND SPARKLE OF POLISHED DIAMONDS , ABOVE IS A DIAGRAM SHOWING THE EFFECT OF POOR CUTTING.

1. WHEN THE CUT IS TOO SHALLOW, THERE IS NO REFLECTION AND THE APPEARANCE OF THE DIAMOND IS TOO TRANSPARENT.

2. WHEN THE CUT IS TOO DEEP,
THE LIGHT WILL BE DIRECTED OUT THE SIDE OF THE DIAMOND AND IT WILL APPEAR TOO DARK.

3. IF THE CUT IS PERFECT, THE
LIGHT WILL BE REFLECTED BACK OUT THE FRONT SURFACES AND GIVE THE MAXIMUM BRILLIANCY.
 


How Professionals Use the 4 C’s  ?
 

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