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1.  WHAT ARE THE CHARACTERISTICS OF A QUALITY DIAMOND?

DIAMONDS ARE GRADED BY THE 4Cs FOR
COLOR, CLARITY, CARAT-WEIGHT AND CUT.


1.  優質鑽石有何特徵?


 

 

COLOR

色澤

 

 

Diamonds range from colorless — the rarest and most valuable — to various degrees of yellow, with a spectrum of shadings in between.

Pure colorless diamonds are classified as "D" and the color scale ranges alphabetically from D-Z.

COLOR is determined by viewing the body of the diamond from the side with the table down, proper lighting and against a white background.

鑽石的色澤排列由珍貴罕見、價值連城的無色美鑽至不同程度及級數的微黃鑽石。

鑽石顏色評級按英文字母順序細分為D至Z級別,D級代表純淨無色的鑽石是最高等級。

觀察鑽石的顏色時,需把鑽石的檯面朝下放於白紙卡上,從觀察鑽石的亭部評估顏色,鑒賞者必須以適當光線加上潔白背景,方可辨識鑽石的色澤。

 

 

 

 

GIA Color Grading Scale

色譜級別

 

 

 

 

 

 

Colorless

無色

 

 


D


E


F

 

 

 

 

Near Colorless

接近無色

 

 


G


H


I


J

 

 

 

 

Faint Yellow

極微黃色

 

 


K


L


M

 

 

 

 

Very Light Yellow

輕微黃色

 

 


N


O - P


Q - R

 

 

 

 

Light Yellow

淺黃色

 

 


S - T


U - V


W - X


Y - Z

 

 

Please note: Monitors vary considerably. The color examples shown are for educational purposes only and may not be exact.

 

請注意:由於不同顯示器的差異,這兒顯示顏色的例子僅用於教育用途,顏色有可能偏差。