Grünes Gewölbe
Encyclopedia
The Grünes Gewölbe in Dresden
Dresden
Dresden is the capital city of the Free State of Saxony in Germany. It is situated in a valley on the River Elbe, near the Czech border. The Dresden conurbation is part of the Saxon Triangle metropolitan area....

 is a unique historic museum that contains the largest collection of treasures in Europe. Founded by Augustus the Strong
Augustus II the Strong
Frederick Augustus I or Augustus II the Strong was Elector of Saxony and King of Poland and Grand Duke of Lithuania ....

 in 1723, it features a rich variety of exhibits from the Baroque
Baroque
The Baroque is a period and the style that used exaggerated motion and clear, easily interpreted detail to produce drama, tension, exuberance, and grandeur in sculpture, painting, literature, dance, and music...

 to Classicism
Classicism
Classicism, in the arts, refers generally to a high regard for classical antiquity, as setting standards for taste which the classicists seek to emulate. The art of classicism typically seeks to be formal and restrained: of the Discobolus Sir Kenneth Clark observed, "if we object to his restraint...

. It is named after the formerly malachite
Malachite
Malachite is a copper carbonate mineral, with the formula Cu2CO32. This green-colored mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses. Individual crystals are rare but do occur as slender to acicular prisms...

 green painted column bases and capitals
Capital (architecture)
In architecture the capital forms the topmost member of a column . It mediates between the column and the load thrusting down upon it, broadening the area of the column's supporting surface...

 of the initial rooms.

After the destruction of the Second World War, the Grünes Gewölbe has been completely reconstructed. Today, its treasures are shown in two exhibitions: The Historic Green Vault (Historisches Grünes Gewölbe) is famous for its splendors of the historic treasure chamber as it existed in 1733, while the New Green Vault (Neues Grünes Gewölbe) focuses the attention on each individual object in neutral rooms.

The Grünes Gewölbe is located on the first and second floors of the western section of the Dresden castle
Dresden castle
Dresden Castle is one of the oldest buildings in Dresden. For almost 400 years, it has been the residence of the electors and kings of Saxony...

. It is now part of the Dresden State Art Collections.

History

The history of the "Green Vault" goes back to the year 1547, when elector Moritz of Saxony
Maurice, Elector of Saxony
Maurice was Duke and later Elector of Saxony. His clever manipulation of alliances and disputes gained the Albertine branch of the Wettin dynasty extensive lands and the electoral dignity....

 initiated the building of an additional west wing to the palace. Four of the new rooms on the first floor were given elaborate, molded plaster ceilings. The column bases and their capitals
Capital (architecture)
In architecture the capital forms the topmost member of a column . It mediates between the column and the load thrusting down upon it, broadening the area of the column's supporting surface...

 were painted with a characteristic bluish-green paint. Due to this color, the rooms were soon known as the "Green Vault", and the name has endured. The official name of the suite of rooms, which was protected against fire and robbery by thick walls, iron shutters and doors, was "Secret Custody" (Geheime Verwahrung).

Throughout the 17th century, these rooms were used by the rulers of Saxony
Electorate of Saxony
The Electorate of Saxony , sometimes referred to as Upper Saxony, was a State of the Holy Roman Empire. It was established when Emperor Charles IV raised the Ascanian duchy of Saxe-Wittenberg to the status of an Electorate by the Golden Bull of 1356...

 as a secret treasure chamber for important documents and jewelry.

Between 1723 and 1729, the elector Frederic Augustus I
Augustus II the Strong
Frederick Augustus I or Augustus II the Strong was Elector of Saxony and King of Poland and Grand Duke of Lithuania ....

, today known as Augustus the Strong, turned the once secret chambers into a public museum. First, he commanded splendid rooms to be created in which to display his collection. The Pretiosensaal (Hall of Treasures) and the Eckkabinett (Corner Cabinet) were listed as completed in the inventory of 1725; they reached their present-day form in this construction phase. An extension followed in 1727. Augustus’ intentions have been preserved on a ground plan from 1727 on which he drew his ideas. As in the first construction phase, the architect Matthäus Daniel Pöppelmann
Matthäus Daniel Pöppelmann
Matthäus Daniel Pöppelmann was a German master builder who helped to rebuild Dresden after the fire of 1685, and designed Dresden Castle and the Pillnitz church.Pöppelmann was born in Herford...

 planned and built a museum-like, artistic structure of German Baroque
Baroque architecture
Baroque architecture is a term used to describe the building style of the Baroque era, begun in late sixteenth century Italy, that took the Roman vocabulary of Renaissance architecture and used it in a new rhetorical and theatrical fashion, often to express the triumph of the Catholic Church and...

 grandeur.Fritz Löffler: Das alte Dresden - Geschichte seiner Bauten. 16th ed. Leipzig: Seemann, 2006, ISBN 9783865020000 A suite of eight interconnecting rooms was constructed whose architectural beauty complemented the abundance and quality of the priceless treasures. Augustus the Strong could now exhibit his entire collection of valuables, including bronze statues and works of art in silver, gold, amber and ivory. The sequence of rooms was deliberately staged, presenting the objects according to their materials. By the end of his almost four-decade-long reign in 1733, Augustus the Strong had made his crown treasures and his inherited riches accessible to the public – an unprecedented innovation in the Baroque period.

These rooms remained unchanged for almost two centuries. When war was imminent in 1938, the art treasures were taken to the Königstein Fortress
Königstein Fortress
Königstein Fortress , the "Saxon Bastille", is a hilltop fortress near Dresden, in Saxon Switzerland, Germany, above the town of Königstein on the left bank of the River Elbe...

.

The Green Vault was severely damaged in the February 13, 1945 bombing of Dresden in World War II
Bombing of Dresden in World War II
The Bombing of Dresden was a military bombing by the British Royal Air Force and the United States Army Air Force and as part of the Allied forces between 13 February and 15 February 1945 in the Second World War...

. Three of the eight rooms were totally destroyed. At the end of the war in 1945, the treasures were confiscated by the Red Army
Red Army
The Workers' and Peasants' Red Army started out as the Soviet Union's revolutionary communist combat groups during the Russian Civil War of 1918-1922. It grew into the national army of the Soviet Union. By the 1930s the Red Army was among the largest armies in history.The "Red Army" name refers to...

 and transported to the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

. After their return to Dresden in 1958, part of the collection was displayed at the Albertinum
Albertinum
The Albertinum is a famous fine art museum in Dresden, Germany, close to Brühl's Terrace and the Zwinger.- History :The Albertinum, named after Saxon king Albert, was built between 1884 and 1887 by Carl Adolf Canzler on the site of a former armoury to serve as a public museum and archive...

.

In 2004, the Neues Grünes Gewölbe (New Green Vault) was opened on the second floor of the rebuilt Dresden castle. Its modern style of presentation centers on the works of art. In 2006, the reconstructed Historisches Grünes Gewölbe (Historic Green Vault) was reopened in the magnificent suite of rooms on the first floor as it had existed in 1733 at the time of its founder's death.

Today's presentation

The whole collection consists of more than 4,000 pieces, with almost 1,100 in the New Green Vault and about 3,000 shown in the original Historic Green Vault.

The Historic Green Vault is located on the first floor of the Dresden Castle and the New Green Vault on the second floor, each covering approximately 2,000 square metres. The Historic Green Vault is famous for the splendors of the treasure chamber, in itself a baroque work of art, while the more modern New Green Vault focuses the attention on each individual object.

Entrance to the Historic Green Vault requires advance purchase of tickets for a specific entry time slot. A limited number of tickets is also sold every morning. The New Green Vault can be visited at any time.

Historic Green Vault

The Historic Green Vault has on display approximately 3,000 masterpieces of jewelry and the goldsmith's art, as well as precious objects made of amber and ivory. Gemstone vessels and elegant bronze statuettes are presented without showcases in front of ornate mirrored display walls.

With these treasure chambers, Augustus the Strong realised his vision of a Baroque Gesamtkunstwerk
Gesamtkunstwerk
A Gesamtkunstwerk is a work of art that makes use of all or many art forms or strives to do so...

(synthesis of the arts) as an expression of wealth and absolutist power. He presented his treasures to a select public, thus establishing the Green Vault as one of Europe's oldest museums.

Exhibition rooms

The Historic Green Vault consists of 9 rooms and one entrance chamber:
  1. The Vorgewölbe (Entrance Chamber, Foyer) with Martin Luther
    Martin Luther
    Martin Luther was a German priest, professor of theology and iconic figure of the Protestant Reformation. He strongly disputed the claim that freedom from God's punishment for sin could be purchased with money. He confronted indulgence salesman Johann Tetzel with his Ninety-Five Theses in 1517...

    -Kabinett: collection of Schatzkunst of the Middle Ages and early Renaissance and enamel works from Limoges
    Limoges
    Limoges |Limousin]] dialect of Occitan) is a city and commune, the capital of the Haute-Vienne department and the administrative capital of the Limousin région in west-central France....

    ; photographs depicting the pre-war condition of the Green Vault.
  2. The Bernsteinkabinett (Amber Cabinet): artworks made of amber
    Amber
    Amber is fossilized tree resin , which has been appreciated for its color and natural beauty since Neolithic times. Amber is used as an ingredient in perfumes, as a healing agent in folk medicine, and as jewelry. There are five classes of amber, defined on the basis of their chemical constituents...

    .
  3. The Elfenbeinzimmer (Ivory Room): great variety of carved art pieces and small statues, all made from real ivory
    Ivory
    Ivory is a term for dentine, which constitutes the bulk of the teeth and tusks of animals, when used as a material for art or manufacturing. Ivory has been important since ancient times for making a range of items, from ivory carvings to false teeth, fans, dominoes, joint tubes, piano keys and...

    .
  4. The Weißsilberzimmer (Silver Room or White Silver Room): silver
    Silver
    Silver is a metallic chemical element with the chemical symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal...

     artworks, including silver table service of Augustus the Strong.
  5. The Silbervergoldete Zimmer (Silver Gilt Room): gilded silver as well as gold drinking vessels and works of art.
  6. The Pretiosensaal (Pretiosa Room or Hall of Treasures): completely mirrored room; most of the mirrors are silvered with mercury
    Mercury (element)
    Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...

    . Contains vessels made of colored gems and amber, mussels and ostrich eggs. Also on display is a collection of artworks made made from rock crystal.
  7. The Wappenzimmer (Coats of Arms Room, Heraldry Room): copper
    Copper
    Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

     and gilded coats of arms of the Saxon provinces
    Electorate of Saxony
    The Electorate of Saxony , sometimes referred to as Upper Saxony, was a State of the Holy Roman Empire. It was established when Emperor Charles IV raised the Ascanian duchy of Saxe-Wittenberg to the status of an Electorate by the Golden Bull of 1356...

    , the Polish state coat of arms and the initial plates of the House of Wettin electorates.
  8. The Juwelenzimmer (Jewel Chamber): crown jewels of the Saxon-Polish royalty and rings, chains, medallions and gems. Contains also the statue "Moor with Emerald Cluster", the "Jewel Garniture" and the "Obeliscus Augustalis".
  9. The Bronzezimmer (Bronze Room): so named for the numerous Renaissance
    Renaissance
    The Renaissance was a cultural movement that spanned roughly the 14th to the 17th century, beginning in Italy in the Late Middle Ages and later spreading to the rest of Europe. The term is also used more loosely to refer to the historical era, but since the changes of the Renaissance were not...

     bronze statues as well as for contemporary bronze figures and figure groups.
  10. The Raum der Renaissancebronzen (Room of Renaissance Bronzes).

Selected exhibits

One of the most important statues in the collection is the "Moor with Emerald
Emerald
Emerald is a variety of the mineral beryl colored green by trace amounts of chromium and sometimes vanadium. Beryl has a hardness of 7.5–8 on the 10 point Mohs scale of mineral hardness...

 Cluster" (Mohr mit Smaragdstufe; also known as "Moor with Emerald Plate" or "Moor with Platter of Emeralds"). It was manufactured by the royal goldsmith Johann Melchior Dinglinger
Johann Melchior Dinglinger
Johann Melchior Dinglinger was one of Europe's greatest goldsmiths, whose major works for the elector of Saxony, Augustus the Strong, survived in the Grünes Gewölbe , Dresden....

 together with Balthasar Permoser
Balthasar Permoser
Balthasar Permoser was among the leading sculptors of his generation, whose evolving working styles spanned the late Baroque and early Rococo....

, probably in 1724. The statue is 63.8 centimetres (2.1 ft) high and richly decorated with jewels. It was created because Augustus the Strong
Augustus II the Strong
Frederick Augustus I or Augustus II the Strong was Elector of Saxony and King of Poland and Grand Duke of Lithuania ....

 wanted to exhibit a precious emerald cluster, studded with 16 dark green emeralds, in his new Schatzkammer museum. This "miracle of nature", which originally came from a Colombia
Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

n mine, was given to Elector Augustus
Augustus, Elector of Saxony
Augustus was Elector of Saxony from 1553 to 1586.-First years:Augustus was born in Freiberg, the youngest child and third son of Henry IV, Duke of Saxony, and Catherine of Mecklenburg. He consequently belonged to the Albertine branch of the Wettin family...

 by Emperor Rudolf II
Rudolf II, Holy Roman Emperor
Rudolf II was Holy Roman Emperor , King of Hungary and Croatia , King of Bohemia and Archduke of Austria...

 as a gift in 1581. The "moor" is actually an elegantly dressed South American Indian, who presents the Colombian emerald cluster on a tray of tortoiseshell
Tortoiseshell material
Tortoiseshell or tortoise shell is a material produced mainly from the shell of the hawksbill turtle, an endangered species. It was widely used in the 1960s and 1970s in the manufacture of items such as combs, sunglasses, guitar picks and knitting needles...

.

The Jewel Garnitures (Juwelen-Garnituren) constitute the largest collection of jewels in Europe. They represented the monarchs' claim of absolute power. Here, the "Dresden White" or "Saxon White" (Sächsische Weiße), a 49.71 carats (9.9 g) carat cushion-shaped diamond, is on display. Also unique is a 648 carats (129.6 g) sapphire
Sapphire
Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide , when it is a color other than red or dark pink; in which case the gem would instead be called a ruby, considered to be a different gemstone. Trace amounts of other elements such as iron, titanium, or chromium can give...

, a present from czar Peter I of Russia
Peter I of Russia
Peter the Great, Peter I or Pyotr Alexeyevich Romanov Dates indicated by the letters "O.S." are Old Style. All other dates in this article are New Style. ruled the Tsardom of Russia and later the Russian Empire from until his death, jointly ruling before 1696 with his half-brother, Ivan V...

.

The jewel-studded obelisk
Obelisk
An obelisk is a tall, four-sided, narrow tapering monument which ends in a pyramid-like shape at the top, and is said to resemble a petrified ray of the sun-disk. A pair of obelisks usually stood in front of a pylon...

 Obeliscus Augustalis was made by Johann Melchior Dinglinger in 1719–21. The 2.28 metres (7.5 ft) high obelisk with 240 stones and figures was acquired by Augustus the Strong directly from Dinglinger's workshop. This cabinet piece, conceived as an indoor monument, shows a portrait of Augustus the Strong at the centre of the monument. He is presented as a king revered by peoples from classical antiquity
Classical antiquity
Classical antiquity is a broad term for a long period of cultural history centered on the Mediterranean Sea, comprising the interlocking civilizations of ancient Greece and ancient Rome, collectively known as the Greco-Roman world...

, as becomes obvious by the cameos of famous men and women from this classical period skillfully carved on the shaft of the obelisk.

New Green Vault

The New Green Vault complements the Historic Green Vault. It contains the unique works of the royal goldsmith Johann Melchior Dinglinger
Johann Melchior Dinglinger
Johann Melchior Dinglinger was one of Europe's greatest goldsmiths, whose major works for the elector of Saxony, Augustus the Strong, survived in the Grünes Gewölbe , Dresden....

 and other outstanding works of Baroque jewelry. The almost 1,100 masterpieces are presented in neutral rooms to focus attention on the objects themselves.

Exhibition rooms

The New Green Vault consists of 12 rooms:
  1. Saal der Kunststücke (Hall of Works of Art): Treasures from the second half of the 16th century, such as "Drinking Vessel in the Shape of Daphne
    Daphne
    Daphne was a female minor nature deity. Pursued by Apollo, she fled and was chased. Daphne begged the gods for help, who then transformed her into Laurel.-Overview:...

    ".
  2. Mikro-Kabinett (Micro Cabinet): Masterpieces of micro-carving, such as the "Cherry Stone With 185 Carved Faces".
  3. Kristall-Kabinett (Crystal Cabinet): Pieces made of rock crystal
    Quartz
    Quartz is the second-most-abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. There are many different varieties of quartz,...

    , such as a rock crystal galley with scenes from classical mythology that accompanied Augustus the Strong on the journey to his coronation in Poland.
  4. Erster Raum des Kurfürsten (First Elector's Room): Treasures from the first half of the 17th century, such as the "Large Ivory Frigate Supported by Neptune
    Neptune (mythology)
    Neptune was the god of water and the sea in Roman mythology and religion. He is analogous with, but not identical to, the Greek god Poseidon. In the Greek-influenced tradition, Neptune was the brother of Jupiter and Pluto, each of them presiding over one of the three realms of the universe,...

    ".
  5. Zweiter Raum des Kurfürsten (Second Elector's Room): Treasures from the second half of the 17th century, such as table clocks and rock crystal pitchers.
  6. Raum der königlichen Pretiosen (Room of Royal Precious Objects): Ivory and pearl pieces, clocks and watches, such as "Nautilus Goblet With Venus
    Venus (mythology)
    Venus is a Roman goddess principally associated with love, beauty, sex,sexual seduction and fertility, who played a key role in many Roman religious festivals and myths...

    " ("Venus Bowl").
  7. Dinglinger-Saal (Dinglinger Hall): Pieces made by court goldsmith Johann Melchior Dinglinger
    Johann Melchior Dinglinger
    Johann Melchior Dinglinger was one of Europe's greatest goldsmiths, whose major works for the elector of Saxony, Augustus the Strong, survived in the Grünes Gewölbe , Dresden....

    , such as the "Golden Coffee Service", the "The Royal Household at Delhi on the Occasion of the Birthday of the Grand Mogul Aureng-Zeb", and the "Bath of Diana
    Diana (mythology)
    In Roman mythology, Diana was the goddess of the hunt and moon and birthing, being associated with wild animals and woodland, and having the power to talk to and control animals. She was equated with the Greek goddess Artemis, though she had an independent origin in Italy...

    ".
  8. Email-Kabinett (Enamel Cabinet): Painted enamels and a large enamel painting depicting Cleopatra's Feast.
  9. Raum der reisenden Pretiosen (Travelling Treasures Room): Historical cases for the transport of masterpieces; they were shaped in such a way that the objects they were intended to hold fitted exactly.
  10. Neuber-Raum (Neuber Room): Contains masterpieces of Johann Christian Neuber, such as the fragments of a decorative fireplace.
  11. Sponsel-Raum (Sponsel Room): Special exhibition room.
  12. Watzdorf-Kabinett (Watzdorf Cabinet): Hat clasp decorated with the "Dresden Green Diamond
    Dresden Green Diamond
    The Dresden Green Diamond, also known as "Dresden Green", is a natural green diamond, which probably originated in the Kollur mine in the state of Andhra Pradesh in the Indian subcontinent....

    ", the only large naturally green diamond that has ever been found.

Selected exhibits

The "Cherry Stone with 185 Carved Faces" was created before 1589 by an unknown artist, probably using a magnifying glass
Magnifying glass
A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle ....

. Actually, 113 faces can be distinguished on this cherry pit, which is integrated into an earring. This tiny work of art was given as a present to Elector Christian I of Saxony
Christian I, Elector of Saxony
Christian I of Saxony was Elector of Saxony from 1586 to 1591.He was the sixth but second surviving son of Elector Augustus of Saxony and Anna of Denmark...

 in 1589.

The "Large Ivory Frigate Supported by Neptune
Neptune (mythology)
Neptune was the god of water and the sea in Roman mythology and religion. He is analogous with, but not identical to, the Greek god Poseidon. In the Greek-influenced tradition, Neptune was the brother of Jupiter and Pluto, each of them presiding over one of the three realms of the universe,...

" was the last work of Jacob Zeller. It was completed in the summer of 1620, a few months before his death. The frigate, with a crew of almost 50 tiny sailors made of ivory, is supported by the god of the seas. One of the mainsails, also made of extremely thin ivory, displays the coat of arms of elector Johann Georg I
John George I, Elector of Saxony
John George I was Elector of Saxony from 1611 to 1656.-Biography:Born in Dresden, he was the second son of the Elector Christian I and Sophie of Brandenburg....

 and his wife Magdalene Sibylle.

The "Golden Coffee Service" presents the cups and saucers and sugar bowls on an elaborate pyramidal etagère surmounted by the coffeepot, all in enameled gold, a cabinet piece unique in Europe. Here, Dinglinger masterfully combines the most diverse artistic forms to produce an avantgarde work of art which can be regarded as one of the first manifestations of the fashion for chinoiserie
Chinoiserie
Chinoiserie, a French term, signifying "Chinese-esque", and pronounced ) refers to a recurring theme in European artistic styles since the seventeenth century, which reflect Chinese artistic influences...

. Augustus took the recently completed ensemble with him to Warsaw at Christmas 1701, to dazzle the nobles of the Polish–Lithuanian Commonwealth, of which he was the nominal ruler.

"The Royal Household at Delhi on the Occasion of the Birthday of the Grand Mogul Aureng-Zeb
Aurangzeb
Abul Muzaffar Muhy-ud-Din Muhammad Aurangzeb Alamgir , more commonly known as Aurangzeb or by his chosen imperial title Alamgir , was the sixth Mughal Emperor of India, whose reign lasted from 1658 until his death in 1707.Badshah Aurangzeb, having ruled most of the Indian subcontinent for nearly...

" represents the idea of European monarchs about Arab palaces in India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. The Grand Mogul embodies the dream of absolute power and immeasurable riches, which for Augustus the Strong was under serious threat at least for a time due to setbacks in the Nordic Wars
Great Northern War
The Great Northern War was a conflict in which a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in northern Central Europe and Eastern Europe. The initial leaders of the anti-Swedish alliance were Peter I the Great of Russia, Frederick IV of...

. This masterpiece of European jewelers’ art comprises 4,909 diamonds, 164 emeralds, 160 rubies, a sapphire, 16 pearls and two cameos. It was created by the royal goldsmith Johann Melchior Dinglinger
Johann Melchior Dinglinger
Johann Melchior Dinglinger was one of Europe's greatest goldsmiths, whose major works for the elector of Saxony, Augustus the Strong, survived in the Grünes Gewölbe , Dresden....

, his brothers and others, between 1701 and 1708. The elector paid almost 60,000 talers for it, more than he did for the construction of Moritzburg Castle.

The "Bath of Diana" (or "Diana Bathing") was Dinglinger's favorite work: the goddess Diana
Diana (mythology)
In Roman mythology, Diana was the goddess of the hunt and moon and birthing, being associated with wild animals and woodland, and having the power to talk to and control animals. She was equated with the Greek goddess Artemis, though she had an independent origin in Italy...

, carved out of ivory, is seated at the edge of a chalcedony
Chalcedony
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic...

 bowl in a filigree
Filigree
Filigree is a delicate kind of jewellery metalwork made with twisted threads usually of gold and silver or stitching of the same curving motifs. It often suggests lace, and in recent centuries remains popular in Indian and other Asian metalwork, and French from 1660 to the late 19th century...

 that is supported between the horns of a stag's head. Two dolphins spew water into the bowl for her bath. A pearl is suspended in place of the shaft, while the bowl seems to float on the tips of the stag's antlers. This masterpiece depicts the mythological scene in which the unapproachable Diana changes the hunter Actaeon
Actaeon
Actaeon , in Greek mythology, son of the priestly herdsman Aristaeus and Autonoe in Boeotia, was a famous Theban hero. Like Achilles in a later generation, he was trained by the centaur Chiron....

 into a deer and has him torn to pieces by his own dogs for having watched her bathing. The base of the piece presents the forest floor, upon which lies the head of the stag Actaeon, with the dogs falling ravenously upon it. The inscription picked out in diamonds on the rim of the base reads, "DISCRETION SERT EFFRONTERIE PERD" ("Discretion is laudable, indiscretion unwise").

The 41 carats (8.2 g) "Dresden Green Diamond
Dresden Green Diamond
The Dresden Green Diamond, also known as "Dresden Green", is a natural green diamond, which probably originated in the Kollur mine in the state of Andhra Pradesh in the Indian subcontinent....

" is the most valuable diamond in the whole Green Vault. The stone's unique green color is due to natural exposure to radioactive materials. It was acquired by Augustus III of Poland
Augustus III of Poland
Augustus III, known as the Saxon ; ; also Prince-elector Friedrich August II was the Elector of Saxony in 1733-1763, as Frederick Augustus II , King of Poland and Grand Duke of Lithuania in 1734-1763.-Biography:Augustus was the only legitimate son of Augustus II the Strong, Imperial Prince-Elector...

 from a Dutch merchant in 1742 at the Leipzig Fair
Leipzig Trade Fair
The Leipzig Trade Fair was a major fair for trade across Central Europe for nearly a millennium. After the Second World War, its location happened to lie within the borders of East Germany, whereupon it became one of the most important trade fairs of Comecon and was traditionally a meeting place...

. Augustus ordered his "house diamond" to be mounted into a decorative badge of the Golden Fleece
Golden Fleece
In Greek mythology, the Golden Fleece is the fleece of the gold-haired winged ram, which can be procured in Colchis. It figures in the tale of Jason and his band of Argonauts, who set out on a quest by order of King Pelias for the fleece in order to place Jason rightfully on the throne of Iolcus...

. His grandson Frederick Augustus I of Saxony
Frederick Augustus I of Saxony
Frederick Augustus I was King of Saxony from the House of Wettin. He was also Elector Frederick Augustus III of Saxony and Duke Frederick Augustus I of Warsaw...

 commissioned the Dresden court jeweler Diesbach to alter it radically. The framed diamond was incorporated into an extremely valuable hat ornament. It became the focal point of a 14.1 centimetre high hat clasp, where it was surrounded by two large colorless diamonds of 19.3 carats (3.9 g) and 6.3 carats (1.3 g) carat plus 411 additional medium-sized and small diamonds. This is the setting that the Dresden Green Diamond still appears in today.

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