A Guide To Buying Diamond Jewellery
The 4 C’s
Diamonds are measured in terms of weight, not size. One carat is equal to 100 points. Two diamonds of equal weight can have very different values, because the quality is still determined by the colour, clarity and cut.
To transform the diamond into a beautiful gem, it is cut with precise facets. Well cut diamonds have amazing brilliance and fire. This is caused by light reflecting off the diamond’s surfaces. The key to desirable fire and brilliance is proportion. Light striking a shallow cut diamond or a diamond cut too deep is lost through the sides or bottom and is not reflected back to the top.
While many diamonds appear colourless or white, they may actually have subtle yellow or brown tones that can be detected when comparing diamonds side by side. Colourless diamonds are the rarest and most valuable of all.
Clarity is an indication of a diamond’s purity, determined by naturally occurring internal characteristics called inclusions. These characteristics are sometimes not visible to the naked eye and they are what make each diamond unique. The most highly prized diamonds are those with no inclusions, otherwise known as flawless diamonds.