For centuries, jadeite has played a strong symbolic role in Chinese culture.
The gemstone is an enduring emblem of good luck and good health, and is presented as a gift at weddings and when a child is born.
It is also extremely strong - fine grained jadeite is actually stronger than steel.
Traditional jadeite jewellery is carved with images of Chinese gods and goddesses, dragons and even food. The gemstone comes in a variety of colours, but the most prized is Imperial green, a vibrant colour similar to emerald green.
Imperial green jadeite sells for five to eight times as much as apple green jadeite, the next most popular colour. Lavender comes next, followed by red, yellow, white and black.
Translucency, represented by an even distribution of colour and an absence of brown streaks, is essential to a stone's value. The finer the underlying grain, the greater the translucency or semi-transparency.
A quiet revolution in jadeite jewellery has been taking place over the past few years. In place of the familiar bangles and Chinese carvings, jadeite is appearing in striking modern designs created for the young and fashionable consumer.