28 Feb 2021
Diamonds have enchanted generations through ages. It had been recognised and treasured as a precious stone since ancient times. The most typical colour used for Diamond jewellery is colourless. However, most Diamonds have a light tint, usually yellowish or brownish. The immense hardness of Diamond contributes to its suitability and importance as a gemstone. Because of its hardness, a Diamond is immune to scratching, as the only thing that can scratch it is another Diamond. This resistance lends it the ability to withstand daily wear and tear beyond the capabilities of most gemstones.
A grading system was implemented to evaluate Diamonds based on four aspects. These four grading systems are known as “the four C’s”, in which all Diamonds are evaluated:
The color of a Diamond is graded on an alphabetical scale ranging from the letters D to Y. This scale measures the color saturation, ranging from absolutely colorless to deep yellow (or yellow-brown). D is totally colorless, without a hint of any other color. Y indicates an intense deep yellow or deep yellow-brown.
The cut, or facet of the Diamond, is the shape and style in which it is cut. The most prevalent cut is the brilliant cut, a facet specially designed to bring out the most fire in the stone. Sometimes this cut cannot be given, either because of flaws or cleavage habits. Much planning must be taken before cutting a Diamond, as a slight error in the facet may significantly decrease the value of the stone.
|FI||Flawless||Contains no flaws or inclusions at all|
|IF||Internally Flawless||Contains no flaws or inclusions at a magnification of 10x|
|VVS1||Very, very small inclusions||Contains very tiny flaws or inclusions visible at 10x magnification|
|VVS2||Very, very small inclusions||Contains tiny flaws or inclusions visible at 10x magnification|
|VS1||Very small inclusions||Contains small flaws or inclusions visible at 10x magnification|
|VS2||Very small inclusions||Contains flaws or inclusions visible at 10x magnification|
|SI1||Small inclusions||Contains larger flaws or inclusions visible at 10x magnification|
|SI2||Small inclusions||Contains larger flaws or inclusions easily visible at 10x magnification|
|I1||Inclusions||Contains inclusions visible to the naked eye|
|I2||Inclusions||Contains large inclusions visible to the naked eye|
|I3||Inclusions||Contains very large inclusions visible to the naked eye|
The size of a Diamond is measured in carats (abbreviated as ct). A carat is equivalent to 0.2 grams (about 0.007 ounces). Another weight measurement sometimes used for small for Diamonds is the point measurement (abbreviated as pt). Each point is one/one hundredth of a carat. For example, a stone weighing 34 pt weighs .34 ct Larger Diamonds are worth more than proportionally smaller ones, meaning a 3 ct Diamond surpasses the value of three 1ct Diamonds.