By Francesca Fearon
Last year, one of the most important pieces of jadeite jewellery in the world, the Hutton-Mdivani necklace, came to auction at Sotheby's and was bought by Cartier for just under US$10 million, a record-breaking figure.
In the early 1930s, the necklace, which dates from the late Qing period and might even have been in the Imperial collection, was a wedding present to the Woolworth heiress, Barbara Hutton, from her father, and Cartier was commissioned to create a clasp for it.
The exceptional value placed on the 27 finely textured, highly translucent jadeite beads of perfectly matched colour that make up this necklace, is because every bead would have had to be cut from the same boulder, and their majestic proportions meant this piece of jadeite was a truly exceptional find.
Prices for jadeite jewellery have soared in the last couple of years, with the highly treasured translucent green hue achieving million-dollar sums for carved pendants, smaller necklaces and bangles. Jade only entered Western jewellery in the early 20th century, when Cartier used it extensively in its Art Deco jewellery, but it is revered in Chinese society where Confucius praised jade as a symbol of righteousness and knowledge.
Yu, the Chinese word for jade, is one of the oldest in the Chinese language, its pictograph dating back almost 3,000 years. The jade bangle is one of the oldest pieces of jewellery in Chinese culture (at least four millennia) and is customarily thought to influence health and prosperity, and ward off negative energy. Traditional Chinese jade is typically nephrite and found in the Kunlun mountains of western China. Admired for its texture, hardness and smooth glossy lustre, it was carved into tools, weapons and ornaments in antiquity.
However, it was the highly prized, rich emerald green gems found in the remote jadeite mines of Hpakan, northern Myanmar (Burma) that really captivated the Chinese. By the late 18th century, vast quantities were being shipped to the Beijing workshops of the jade carvers. Emperor Qianlong preferred the rich hues of Burmese jadeite and the semi-transparent emerald colour that came to be known as "Imperial jade", its colour created by traces of chromium.
Imperial jade is, of course, the most rare, but lavender, yellow, black and white jadeite also come from Myanmar, and traders ascribe the varying levels of translucency with categories such as "icy" or "glassy".
Lavender has become increasingly popular in recent years for its beautiful purple hues and feminine allure. In Hong Kong, where jade has been traded for centuries, the late Edward Chiu, who came from a family of jade traders, was drawn to its rainbow palette, creating artistic jadeite jewellery that played on the soft femininity of lavender, or the striking modernism of black and white jadeite in minimalist and geometric designs.
Samuel Kung is a renowned jadeite expert who has built a close relationship with the jade mine owners in Myanmar. As a contemporary jadeite artist, his lush green designs play on a refined Chinese aesthetic using traditional motifs, but he also likes to juxtapose polished raw shapes with delicate diamond settings.
YEWN's creative director Dickson Yewn weaves China's artistic history into his intricate jadeite jewellery, setting green or golden yellow shades with delicate white gold and diamonds using classic Chinese motifs such as lattice, peonies or cloisonné patterns for his rings, bangles and earrings.
However, jadeite is still a rare ingredient in Western jewellery, with only occasional appearances, mostly from green or white jadeite. Swiss high jeweller Glenn Spiro combines soft, greyish-blue jade with pink diamonds in a necklace and earring suite that really takes the breath away. It is in Hong Kong, China and Taiwan, though, where the full potential of jadeite is fully explored.
Read more about jade on our list of best high jewellery of 2015
These unique Edward Chiu jadeite-coloured gemstone earrings are made from white gold, lavender jade, black jade, ruby and diamonds.
Edward Chiu's beautiful green jadeite, black jade, ruby and diamond earrings in white gold.
Glenn Spiro's jadeite suite includes a necklace set with a pear-shaped diamond weighing 10.5 carats, 42 old-cut diamonds, greyish-blue Jade, rose-cut diamonds and white jade.
Samuel Kung's contemporary-styled lavender jadeite suite set in white gold with wood.
Samuel Kung's dainty, rough hewn jadeite earrings with pavé-set diamonds and briolettes.
Samuel Kung showcases this almost translucent Imperial green cabochon jadeite stone by setting it in a diamond flower ring.
A polished rock of green jadeite, set in a yellow and white gold ring by Samuel Kung.
Smoothly polished jadeite ring held by tiny tendrils of diamonds set in white gold, from Samuel Kung's collection.
Samuel Kung's "The Blessing" is the traditional circle-of-life symbol of organic. Featuring green and lavender jadeite and pavé-set diamonds, this suite of jewellery symbolises infinity, with the interlocking rings representing yin and yang.
YEWN's Imperial jadeite and wood bangle in blackened white gold with jadeite, diamonds, pink sapphires and tsavorites, from the Grace Collection.
YEWN's Floral Lattice Collection Lotus Leaf and Salamander ring in yellow gold with jadeite, diamonds, black diamonds and tsavorites.
YEWN's Glorious Peony jadeite earrings in blackened white gold with jadeite, diamonds, pink sapphires, sapphires and tsavorites.