top of page
Diamond Guide​
​

Our Diamond guide has been designed to give you useful information about the diamonds we use in our jewellery.

 

The "4C's"

The 4C’s - Colour, Clarity, Cut and Carat weight is the universal method for assessing the quality of any diamond and calculating its value.

 

​​

​

GIAColorScale_2014_636x200.jpg
images.png

Diamond Cut

Diamond cut determines the diamond’s ultimate sparkle as the facets reflect and refract light.

Diamond cut grades are based on a number of factors including symmetry, polish, brilliance and fire.

 

Cut quality grades:

 

  • Excellent

  • Very good

  • Good

  • Fair

  • Poor

 


Diamond Clarity

Diamond clarity is graded by the visability of the diamonds internal and eternal  flaws/ characteristics. A diamond is graded as flawless if, under 10-power magnification, no inclusions and no blemishes are visible.

 

The GIA clarity scale:

 

  • FL diamonds are Flawless

  • IF diamonds are Internally Flawless

  • VVS1 & VVS2 diamonds are Very, Very slightly included

  • VS1 & VS2 diamonds are Very Slightly Included

  • SI1 & SI2 diamonds are Slightly Included

  • I1, I2 & I3 are Imperfect

 

 

Diamond Colour

Diamonds can be found in a variety of shades, from a brilliant white to a light yellow. Diamond colour is graded by assigning a letter grade which ranges from “D” (colourless) to “Z” (light yellow).

​

​

​

​

​

​

​

​

​

​

​

 

​

Diamond Carat weight

The term diamond carat weight measures how much a diamond weighs.However, two diamonds of equal carat weight can have very different values depending on the other factors of the diamond 4C’s: Colour, Clarity and Cut.

 

Robert’s Fine Jewellery can source loose stones for clients to view in-store. We will hand pick a beautiful diamond according to your specification. Robert’s Fine Jewellery can help you find the perfect diamond for every budget.​

​

bottom of page