• Gemstones

    Jade

    Jade (Yu in Chinese pinyin) was defined as beautiful stones by Xu Zhen (about 58-147) in Shuo Wen Jie Zi, the first Chinese dictionary. Jade is generally classified into soft jade (nephrite) and hard jade (jadeite). Since China only had the soft jade until jadeite was imported from Burma during the Qing dynasty (1271-1368), jade traditionally refers to the soft jade so it is also called traditional jade. Jadeite is called Feicui in Chinese. Feicui is now more popular and valuable than the soft jade in China.

    The history of jade is as long as the Chinese civilization. Archaeologists have found jade objects from the early Neolithic period (about 5000 BC), represented by the Hemudu culture in Zhejian Province, and from the middle and late Neolithic period, represented by the Hongshan culture along the Lao River, the Longshan culture along the Yellow River, and the Liangzhu culture in the Tai Lake region.

    Jade has been ever more popular till today.

    Thus jade is really special in Chinese culture, also as the Chinese saying goes “Gold has a value; jade is invaluable.”

    Because jade stands for beauty, grace and purity, it has been used in many Chinese idioms or phrases to denote beautiful things or people, such as Yu Jie Bing Qing (pure and noble), Ting Ting Yu Li (fair, slim and graceful) and Yu Nv (beautiful girl). The Chinese character Yu is often used in Chinese names.

    Jade culture is very rich in China. We have only touched the surface of it. In conclusion, jade symbolizes beauty, nobility, perfection, constancy, power, and immortality in Chinese culture.

    In Chinese, “jade”(yu) refers to a fine, beautiful stone with a warm color and rich lustre, that is skilfully and delicately carved.

    In Chinese culture, jade symbolizes nobility, perfection, constancy, and immortality. For millennia, jade has been an intimate part of the lives of Chinese of all ranks and classes. It is viewed as the most valuable of all precious stones.

    Jade is found in mountains and riverbeds, and Chinese consider jade to be “the essence of heaven and earth.” When polished and carved into various articles, jade is attributed with certain cultural characteristics.

    In ancient Chinese cosmology, the firmament was considered to be round, and the earth square. Thus a round jade ceremonial ornament with a hole in the center, called a pi, was carved to honor the gods of heaven, and a long hollow jade ornament with rectangular sides, called a ts’ung, was made to honor the spirits of earth.

    According to ancient Chinese legend, the phoenix and the dragon are animal deities that are the life-source of family clans.

    Amber

    Dinosaurs have been more popular than ever since their starring role in the movie Jurassic Park. A more surprising result of the movie’s popularity has been a worldwide surge in demand for amber jewelry. Although amber’s use in adornment is probably as old as mankind, in recent history it has had a limited market. Of course, that was before millions of people saw dinosaur DNA extracted from a mosquito trapped in amber in the movie.
    Millions of people learned from the movie that amber, which is fossilized pine tree sap, is ancient and valuable, like an antique from previous history.

    Demand is especially strong for amber with insects inside. “Amber is like a time capsule made and placed in the earth by nature herself,” said David Federman, author of Consumer Guide to Colored Gemstones. “It has helped paleontologists reconstruct life on earth in its primal phases. More than 1,000 extinct species of insects have been identified in amber.”

    The two main sources of amber on the market today are the Baltic states and the Dominican Republic. Amber from the Baltic states is older, and therefore preferred on the market, but amber from the Dominican Republic is more likely to have insect inclusions. Prices of amber can range from $20 to $40,000 or more.

    Fortunately for new amber enthusiasts, amber from the Baltic states is more available on the market than in previous years due to the liberalization of the economies of eastern Europe and the former Soviet Union. The largest mine in the Baltic region is in Russia, west of Kaliningrad. Baltic amber is found in Lithuania, Latvia, Estonia, Poland, Russia, and occasionally washed up on the shores of the Baltic Sea as far away as Denmark, Norway, and England. Other amber sources include Myanmar (formerly Burma), Lebanon, Sicily, Mexico, Romania, Germany, and Canada.

    Desire for amber is nothing new. Amber artifacts dating to the Stone Age were found in what is now Germany and Denmark.
    “Stone Age man imbued amber with supernatural properties and used it to wear and to worship,” Mr Federman said. “Amber took on great value and significance to, among others, the Assyrians, Egyptians, Etruscans, Phoenicians, and Greeks. It never completely went out of vogue since the Stone Age. Between 1895 and 1900, one million kilograms of Baltic amber were produced for jewelry.”

    Many myths surround the origin of amber. Ovid writes that when Phaeton, a son of Phoebus, the sun, convinced his father to allow him to drive the chariot of the sun across the sky for a day, he drove too close to the earth, setting it on fire. To save the earth, Jupiter struck Phaeton out of the sky with his thunderbolts and he died, plunging out of the sky. His mother and sister turned into trees in their grief but still cried mourning him. Their tears, dried by the sun, are amber.

    The Greeks called amber elektron, or sun-made, perhaps because of this story, or perhaps because it becomes electrically charged when rubbed with a cloth and can attract small particles. Homer mentions amber jewelry – earrings and a necklace of amber beads – as a princely gift in the Odyssey.

    Another ancient writer, Nicias, said that amber was the juice or essence of the setting sun congealed in the sea and cast up on the shore.

    The Romans sent armies to conquer and control amber producing areas. Emperor Nero was a great connoisseur of amber. During his time, wrote Roman historian Pliny, the price of an amber figurine, no matter how small, exceeded the price of a living healthy slave.

    The ancient Germans burned amber as incense, so they called it bernstein, or “burn stone.” Clear colorless amber was considered the best material for rosary beads in the Middle Ages due to its smooth silky feel. Certain orders of knights controlled the trade and unauthorized possession of raw amber was illegal in most of Europe by the year 1400.
    Could a mosquito trapped in amber hold dinosaur DNA? Most amber just isn’t old enough, celebrating maybe 25 to 50 million birthdays at most. The dinosaurs died out 65 million years ago at the end of the Cretaceous period. The Jurassic period was 144 million years ago. But in 1994, Dr Raul Cano of California Polytechnic state University at San Luis Obispo, a molecular biologist, reported in the British journal Nature that he and his colleagues had extracted DNA from a weevil that was trapped in amber 120 to 135 million years ago, when dinosaurs roamed the earth.

    The amber, which was from the Lower Cretaceous period, was mined in the mountains of Lebanon south of Beirut by Aftim Acra, who has a collection of amber pieces containing 700 insects, including termites, moths, caterpillars, spiders, pseudoscorpions, and midges, which do suck blood.

    Emerald

    Emeralds are fascinating gemstones. They have the most beautiful, most intense and most radiant green that can possibly be imagined: emerald green. Inclusions are tolerated. In top quality, fine emeralds are even more valuable than diamonds.

    The name emerald comes from the Greek smaragdos via the Old French esmeralde, and really just means ‘green gemstone’. Innumerable fantastic stories have grown up around this magnificent gem. The Incas and Aztecs of South America, where the best emeralds are still found today, regarded the emerald as a holy gemstone. However, probably the oldest known finds were once made near the Red Sea in Egypt. Having said that, these gemstone mines, already exploited by Egyptian pharaohs between 3000 and 1500 B.C. and later referred to as ‘Cleopatra’s Mines’, had already been exhausted by the time they were rediscovered in the early 19th century.

    Written many centuries ago, the Vedas, the holy scriptures of the Indians, say of the precious green gems and their healing properties: ‘Emeralds promise good luck …’; and ‘The emerald enhances the well-being …’. So it was no wonder that the treasure chests of Indian maharajas and maharanis contained wonderful emeralds. One of the world’s largest is the so-called ‘Mogul Emerald’. It dates from 1695, weighs 217.80 carats, and is some 10cm tall. One side of it is inscribed with prayer texts, and engraved on the other there are magnificent floral ornaments. This legendary emerald was auctioned by Christie’s of London to an unidentified buyer for 2.2m US Dollars on September 28th 2001.

    Emeralds have been held in high esteem since ancient times. For that reason, some of the most famous emeralds are to be seen in museums and collections. The New York Museum of Natural History, for example, has an exhibit in which a cup made of pure emerald which belonged to the Emperor Jehangir is shown next to the ‘Patricia’, one of the largest Colombian emerald crystals, which weighs 632 carats. The collection of the Bank of Bogota includes five valuable emerald crystals with weights of between 220 and 1796 carats, and splendid emeralds also form part of the Iranian National Treasury, adorning, for example, the diadem of the former Empress Farah. The Turkish sultans also loved emeralds. In Istanbul’s Topkapi Palace there are exhibits with items of jewellery, writing-implements and daggers, each lavishly adorned with emeralds and other gems.

    Amethyst

    Purple has long been considered a royal color so it is not surprising that amethyst has been so much in demand during history. Fine amethysts are featured in the British Crown Jewels and were also a favorite of Catherine the Great and Egyptian royalty. Amethyst, transparent purple quartz, is the most important quartz variety used in jewelry.
    Leonardo Da Vinci wrote that amethyst was able to dissipate evil thoughts and quicken the intelligence.

    Because amethyst was thought to encourage celibacy and symbolize piety, amethyst was very important in the ornamentation of Catholic and other churches in the Middle Ages. It was, in particular, considered to be the stone of bishops and they still often wear amethyst rings.

    In Tibet, amethyst is considered to be sacred to Buddha and rosaries are often fashioned from it.

    The Greek work “amethystos” basically can be translated as “not drunken.” Amethyst was considered to be a strong antidote against drunkenness, which is why wine goblets were often carved from it! The gemstone still symbolizes sobriety.

    The legend of the origin of amethyst comes from Greek myths. Dionysius, the god of intoxication, was angered one day by an insult from a mere mortal and swore revenge on the next mortal that crossed his path, creating fierce tigers to carry out his wish. Along came unsuspecting Amethyst, a beautiful young maiden on her way to pay tribute to the goddess Diana. Diana turned Amethyst into a stature of pure crystalline quartz to protect her from the brutal claws. Dionysus wept tears of wine in remorse for his action at the sight of the beautiful statue. The god’s tears stained the quartz purple, creating the gem we know today.

    Amethyst ranges in color from pale lilac to deep purple. The pale colors are sometimes called “Rose de France” and can be seen set in Victorian jewelry. The deep colors are the most valuable, particularly a rich purple with rose flashes.

    Amethyst is mined in Brazil, Uruguay, Bolivia and Argentina, as well as in Zambia, Namibia and other African countries.

    Generally, amethyst from South America tends to be available in larger sizes than African amethyst but amethyst from Africa has the reputation for having better, more saturated, color in small sizes. Very dark amethyst, mostly in small sizes, is also mined in Australia.

    Amethyst is available in a wide range of calibrated sizes and shapes, including many fancy shapes. Large fine stones may be sold in free sizes but generally amethyst is cut in standardized dimensions.

    Topaz

    The Egyptians said that topaz was colored with the golden glow of the mighty sun god Ra. This made topaz a very powerful amulet that protected the faithful against harm. The Romans associated topaz with Jupiter, who also is the god of the sun. Topaz sometimes has the amber gold of fine cognac or the blush of a peach and all the beautiful warm browns and oranges inbetween. Some rare and exceptional topaz are pale pink to a sherry red.

    Wear topaz only if you wish to be clear-sighted: legend has it that it dispels all enchantment and helps to improve eyesight as well! The ancient Greeks believed that it had the power to increase strength and make its wearer invisible in times of emergency. Topaz was also said to change color in the presence of poisoned food or drink. Its mystical curative powers waxed and waned with the phases of the moon: it was said to cure insomnia, asthma, and hemorrhages.

    Perhaps the most famous topaz is a giant specimen set in the Portuguese Crown, the Braganza, which was first thought to be a diamond. There is also a beautiful topaz set in the Green Vault in Dresden, one of the world’s important gem collections.

    Brown, yellow, orange, sherry, red and pink topaz is found in Brazil and Sri Lanka. Pink topaz is found in Pakistan and Russia.

    Today we also have blue topaz, which has a pale to medium blue color created by irradiation. Pale topaz which is enhanced to become blue is found in Brazil, Sri Lanka, Nigeria, and China. In early 1998, a new type of enhanced topaz made its appearance, the surface-enhanced topaz, with colours described as blue to greenish-blue or emerald green.

    Topaz is a very hard gemstone but it can be split with a single blow, a trait it shares with diamond. As a result it should be protected from hard knocks.

    Topaz is the birthstone for those born in the month of November.

    Alexandrite

    This rare gemstone is named after the Russian tsar Alexander II (1818-1881), the very first crystals having been discovered in April 1834 in the emerald mines near the Tokovaya River in the Urals. The discovery was made on the day the future tsar came of age. Although alexandrite is a relatively young gemstone, it certainly has a noble history. Since it shows both red and green, the principal colours of old Imperial Russia, it inevitably became the national stone of tsarist Russia.

    Beautiful alexandrite in top quality, however, is very rare indeed and hardly ever used in modern jewellery. In antique Russian jewellery you may come across it with a little luck, since Russian master jewellers loved this stone. TiffanyˇŻs master gemmologist George Frederick Kunz (1856-1932) was also fascinated by alexandrite, and the jewellerˇŻs firm produced some beautiful series of rings and platinum ensembles at the end of the 19th and beginning of the 20th century. Smaller alexandrites were occasionally also used in Victorian jewellery from England.
    The most sensational feature about this stone, however, is its surprising ability to change its colour. Green or bluish-green in daylight, alexandrite turns a soft shade of red, purplish-red or raspberry red in incandescent light. This unique optical characteristic makes it one of the most valuable gemstones of all, especially in fine qualities.

    Alexandrite is very scarce: this is due to its chemical composition. It is basically a chrysoberyl, a mineral consisting of colourless or yellow transparent chrysoberyl, chrysoberyl catˇŻs eye and colour-changing alexandrite (also in catˇŻs eye varieties). It differs from other chrysoberyls in that it not only contains iron and titanium, but also chromium as a major impurity. And it is this very element which accounts for the spectacular colour change. Rarely, vanadium may also play a part. According to CIBJO nomenclature, only chrysoberyls displaying a distinct change of colour may be termed alexandrite.

    Like many other gemstones, alexandrite emerged millions of years ago in a metamorphic environment. But unlike many others, its formation required specific geological conditions. The chemical elements beryllium (a major constituent in chrysoberyl) and chromium (the colouring agent in alexandrite) have contrasting chemical characteristics and do not as a rule occur together, usually being found in contrasting rock types. Not only has Nature brought these contrasting rock types into contact with each other, but a lack of the chemical element silica (the second most common element in the Earth’s crust) is also required to prevent the growth of emerald. This geological scenario has occurred only rarely in the Earth’s history and, as a result, alexandrite crystals are very scarce indeed.

    Pearls

    Pearls are an organic gem, created when an oyster covers a foreign object with beautiful layers of nacre. Long ago, pearls were important financial assets, comparable in price to real estate, as thousands of oysters had to be searched for only one pearl. They were rare because they were created only by chance.

    Today pearls are cultured by man: shell beads are placed inside an oyster and the oyster is returned to the water. When the pearls are later harvested, the oyster has covered the bead with layers of nacre. Most cultured pearls are produced in Japan. In the warmer waters of the South Pacific, larger oysters produce South Sea cultured pearls and Tahitian black cultured pearls, which are larger in size. Freshwater pearls are cultured in freshwater mussels, mostly in China.

    The quality of pearls is judged by the orient, which is the soft iridescence caused by the refraction of light by the layers of nacre, and luster, the reflectivity and shine of the surface. Fine pearls do not have any flaws or spots in the nacre: it has an even smooth texture. Other factors which affect value are the regularity of the shape, size, and color: rose tints are the most favored.

    Cultured pearls and natural pearls can be distinguished from imitation pearls by a very simple test. Take the pearl and rub it (gently!) against the edge of a tooth. Cultured and natural pearls will feel slightly rough, like fine sandpaper, because of the texture of natural nacre. Imitations will feel as smooth as glass because the surface is molded or painted on a smooth bead.

    Zircon

    Hindu poets tell of the Kalpa Tree, the ultimate gift to the gods, which was a glowing tree covered with gemstone fruit with leaves of zircon. Zircon has long had a supporting role to more well-known gemstones, often stepping in as an understudy when they were unavailable.
    In the middle ages, zircon was said to aid sleep, bring prosperity, and promote honor and wisdom in its owner. The name probably comes from the Persian word zargun which means “gold-colored,” although zircon comes in a wide range of different colors.

    Natural zircon today suffers for the similarity of its name to cubic zirconia, the laboratory-grown diamond imitation. Some don’t realize that there is a beautiful natural gemstone called zircon.

    Zircon occurs in a wide range of colors but for many years, the most popular was the colorless variety which looks more like diamond than any other natural stone due to its brilliance and dispersion.

    Today the most popular color is blue zircon. Most blue zircon, which is considered an alternate birthstone for December, is a pastel blue, but some exceptional gems have a bright blue color. Zircon is also available in green, dark red, yellow, brown, and orange.

    Zircon is mined in Cambodia, Sri Lanka, Thailand, Myanmar, Australia, and other countries.

    Zircon is one of the heaviest gemstones, which means that it will look smaller than other varieties of the same weight. Zircon jewelry should be stored carefully because although zircon is relatively hard, it can abrade and facets can chip. Dealers often wrap zircons in individual twists of paper so that they will not knock against each other in a parcel.

    The wide variety of colors of zircon, its rarity, and its relatively low cost make it a popular collector’s stone. Collectors enjoy the search for all possible colors and variations.

    Citrine

    Citrine is one of the most affordable gemstones, thanks to the durability and availability of this golden quartz. Named from the French name for lemon,”citron,” many citrines have a juicy lemon color.

    Citrine includes yellow to gold to orange brown shades of transparent quartz. Sunny and affordable, citrine can brighten almost any jewelry style, blending especially well with the yellow gleam of polished gold.

    In ancient times, citrine was carried as a protection against snake venom and evil thoughts.

    Although the darker, orange colors of citrine, sometimes called Madeira citrine after the color of the wine, has generally been the most valued color, in modern times, many people prefer the bright lemony shades which mix better with pastel colors. Citrine is generally more inexpensive than amethyst and is also available in a wide range of calibrated sizes and shapes, including very large sizes.

    Most citrine is mined in Brazil. Supply of citrine is good from the Brazilian state of Rio Grande do Sul, particularly from the Serra mine, which is producing 300 kilos a month of hammered goods. The Iraa mine produces an additional 100 kilos a month of hammered goods.

    Sometimes you will hear citrine referred to as topaz quartz, which is incorrect. This name was used in the past in reference to the color, which is sometimes similar to the color of topaz. Since topaz is a separate mineral, this type of name can be confusing and should not be used. However, citrine is considered an alternative to topaz as the birthstone for November.

    Since most citrine on the market started its life as amethyst which was heated to turn its color to gold, citrine jewelry, as well as amethyst jewelry, should be kept away from prolonged exposure to strong light or heat. With this precaution, citrine jewelry will last for many generations.