Understanding the 4 Cs will help you find the diamond jewellery that’s right for you and your budget. For example, you may decide to opt for a smaller carat weight in order to have the whitest diamond with the best clarity.
Whilst diamonds do appear to be colourless, they can in fact contain subtle shades of yellow or brown. Like most jewellers, we use the GIA scale of colour which grades diamond colour from D (colourless) to Z (yellow). The whiter the diamond is, the greater its value. Truly colourless diamonds (D), which can be obtained with a Canadian Fire diamond, are prized because of their rarity.
Most diamonds contain inclusions – natural elements which were trapped inside the diamond when it was formed. The fewer the inclusions, the greater the clarity and the more valuable it is.
However, most inclusions can only really be seen through a jeweller’s loupe or magnifier and many can be hidden by a diamond’s setting or mount. Canadian Fire diamonds are only available with a clarity of SI2 or above, i.e. with slight inclusions or less.
In order to bring out the very best in a diamond, it needs to be cut by a skilled, experienced craftsman. If the diamond is cut too shallow or too deeply the light can escape through the sides and make the diamond seem less brilliant.
The carat (ct) is the measure of the diamond’s weight rather than its size. A carat is the equivalent of 0.2grams in weight and is made up of 100 points. The weight of smaller diamonds is often expressed as points so a 10 point stone, for example, would equal 0.1ct. It’s common for two diamonds of the same weight to be valued differently because of the differences between them in colour, clarity or cut. The larger the diamond, the rarer it is and therefore it has a higher price per carat. A single 1ct diamond ring is often more valuable than a ring consisting of multiple smaller diamonds totalling the same weight.