How are Diamonds Priced?

This is a commonly asked question and has a multifaceted answer.

The Four factors integral to determining the price of a diamond, (the Four Cs) are detailed below:

1. Cut

An indication of style & workmanship

The shape determines its worth

2. Colour

Graded in a range from colourless "D" (highest quality), to "Z"

DEFGHIJKLMNOPQRSTUVWXYZ

Colourless → pale yellow

3. Clarity

The clarity of a diamond is typified by the degree of flaws, and categorised accordingly:

FL IF VVS1 VVS2 VS1 VS2 S1 S2 I1 I2 I3

Flawless → imperfect

4. Carat

The unit of measurement used to determine the mass of a stone

A Carat is the unit of measurement used when weighing a diamond. One carat is the equivalent of 0.2 grams. A diamond's value is greatly determined by its weight. For example if you had two identical diamonds i.e. same colour, clarity and cut but the one weighs 1 carat and the other only half a carat, the 1 carat diamond may be worth as much as 350% more than the half carat!