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Loose Diamonds
item pixelpurple bullet Engagement Rings
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Bracelets

 

Trilogy Rings

 

Budget diamonds



Diamond guide

 

purple bullet The 4 'C's

 
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purple bulelt Tips
 
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Diamond Center 2

blood diamonds


Understanding a

Diamond Laboratory Report

The 4 C'

Carat - weight

The weight of a diamond is expressed in carats. There are 5 carats in one gram. The carat weight is divided into points, there are 100 points to the carat. A quarter of a carat is called a 'grain'(0.25ct.)

The bigger a diamond is the rarer and therefore dearer it is, ie.: a 1 ct. diamond can be four/six times more expensive than a similar quality stone of half it's size.

Gemmological laboratories use digital highly precise scales to determine weight and give weight up to three decimals points. Please find below an approximate size expressed as a diameter to:

0.25ct ..................... 4mm
0.50ct ..................... 5mm
1.00ct ..................... 6.5mm
1.25ct
.....................
7.5mm
1.50ct ..................... 8.5mm
1.75ct ..................... 9mm
2.00ct ..................... 10mm