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Noor-ul-Ain
The Noor-ul-Ain ( fa, نور العين, lit=the light of the eye) is one of the largest pink diamonds in the world, and the centre piece of the tiara of the same name. History The diamond is believed to have been recovered from the mines of Golconda, Hyderabad in India. It was first in possession with the nizam Abul Hasan Qutb Shah, later it was given as a peace offering to the Mughal emperor Aurangazeb when he defeated him in a siege. It was brought into the Iranian Imperial collection after the Persian king Nader Shah Afshar looted Delhi in the 18th century. The Noor-ul-Ain is believed to have once formed part of an even larger gem called the Great Table diamond. That larger diamond is thought to have been cut in two, with one section becoming the Noor-ul-Ain and the other the Daria-i-Noor diamond. Both of these pieces are currently part of the Iranian Crown Jewels. History of the tiara The Noor-ul-Ain is the principal diamond mounted in a tiara of the same name made for I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daria-i-Noor
The Daria-i-Noor ( fa, , lit=Sea of light), also spelled ''Darya-ye Noor'', is one of the largest cut diamonds in the world, weighing an estimated 182 carats (36 g). Its colour, pale pink, is one of the rarest to be found in diamonds. The diamond is currently in the Iranian Crown Jewels collection of the Central Bank of Iran in Tehran. Dimensions It is and weighs around 182 metric carats. It is the world's largest known pink diamond. History This diamond, as it is also presumed for the Koh-i-Noor, was mined in Kollur mine in Andhra Pradesh, India. It was originally owned by the Kakatiya dynasty, later it was possessed by the Khalji dynasty of the Delhi Sultanate and to Mughal emperors. It was part of Shah Jahan's Peacock Throne. In 1739, Nader Shah of Iran invaded Northern India, occupied Delhi. As payment for returning the crown of India to the Mughal emperor, Muhammad Shah, he took possession of the entire fabled treasury of the Mughals, including the ''Daria-i-Noor'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Table Diamond
The Great Table was a large pink diamond that had been studded in the throne of the Mughal emperor Shah Jahan. It has been described in the book of the French jeweller Jean-Baptiste Tavernier in 1642, who gave it its name ("Diamanta Grande Table"). The diamond was plundered by Nader Shah during his invasion of India in 1739 and disappeared after his assassination. In 1965, a Canadian team from the Royal Ontario Museum conducting research on the Iranian Crown Jewels concluded that the larger Daria-i-Noor and the smaller Noor-ul-Ain may well have been part of the Great Table. gem, Britannica.com See also * *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pink Diamonds
Pink diamond is a type of diamond that has pink color. The source of their pink color is greatly debated in the gemological world but it is most commonly attributed to plastic deformation that these diamonds undergo during their formation. Pink diamonds belong to a subcategory of diamonds called color diamonds, the generic name for all diamonds that exhibit any sort of color. Pink diamonds range from flawless to included, as do white diamonds. Origin of the pink color Numerous theories have been posited as to how the pink is formed in pink diamonds. The prevailing theory is that the pink is caused when the diamond is subjected to shear pressure during its formation. A similar theory is being tested on pink diamonds that originated in the Argyle Mine in Kimberley, Western Australia. This theory posits that a seismic shock propelled colorless diamonds to the surface and altered their molecular structure, causing them to appear pink. Properties determining value The same four basi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golkonda
Fort (Telugu: గోల్కొండ, romanized: ''Gōlkōnḍa'') is a historic fortress and ruined city located in Hyderabad, Telangana, India. It was originally called Mankal. The fort was originally built by Kakatiya ruler Pratāparudra in the 11th century out of mud walls. It was ceded to the Bahmani Kings by Deo Rai, Rajah of Warangal during the reign of Sultan Muhammad Shah (1358-1375 A.D.) of the Bahmani Sultanate. Following the death of Sultan Mahmood Shah, the Sultanate disintegrated and Sultan Quli, who had been appointed as the Governor of Telangana by the Bahmani Kings, fortified city and made it the capital of the Golconda Sultanate. Because of the vicinity of diamond mines, especially Kollur Mine, Golconda flourished as a trade centre of large diamonds known as Golconda Diamonds. Golconda Fort is currently abandoned and in ruins. The complex was put by UNESCO on its "tentative list" to become a World Heritage Site in 2014, with others in the region, under t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platinum
Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish , a diminutive of "silver". Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements. It has six naturally occurring isotopes. It is one of the rarer elements in Earth's crust, with an average abundance of approximately 5 μg/kg. It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa, which accounts for ~80% of the world production. Because of its scarcity in Earth's crust, only a few hundred tonnes are produced annually, and given its important uses, it is highly valuable and is a major precious metal commodity. Platinum is one of the least reactive metals. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Consequent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iranian National Jewels
The Iranian National Jewels ( fa, جواهرات ملی ایران, ''Javāherāt-e Melli-ye Irān''), originally the Iranian Crown Jewels ( fa, جواهرات سلطنتی ایران, ''Javāherāt-e Saltanati-ye Irān''), include elaborate crowns, thirty tiaras, and numerous aigrettes, a dozen bejeweled swords and shields, a number of unset precious gems, numerous plates and other dining services cast in precious metals and encrusted with gems, and several other more unusual items (such as a large golden globe with the oceans made of emeralds) collected or worn by the Persian monarchs from the 16th century (Safavid Persia) and on. The collection is housed at the Treasury of National Jewels, situated inside the Central Bank of Iran on Tehran's Ferdowsi Avenue. Safavid and Afsharid conquests The majority of the items now in the collection were acquired by the Safavid dynasty, which ruled Iran from 1502 to 1736 AD. Afghans invaded Iran in 1719 and sacked the then capital of Isf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jewels Of The Mughal Empire
A gemstone (also called a fine gem, jewel, precious stone, or semiprecious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as lapis lazuli, opal, and obsidian) and occasionally organic materials that are not minerals (such as amber, jet, and pearl) are also used for jewelry and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used in jewelry because of their luster or other physical properties that have aesthetic value. Rarity and notoriety are other characteristics that lend value to gemstones. Apart from jewelry, from earliest antiquity engraved gems and hardstone carvings, such as cups, were major luxury art forms. A gem expert is a gemologist, a gem maker is called a lapidarist or gemcutter; a diamond cutter is called a diamantaire. Characteristics and classification The traditional classification in the West, which g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elizabeth II's Jewels
Queen Elizabeth II owned a historic collection of jewels – some as monarch and others as a private individual. They are separate from the gems and jewels of the Royal Collection, and from the coronation and state regalia that make up the Crown Jewels. The origin of a distinct royal jewel collection is vague, though it is believed the jewels have their origin somewhere in the 16th century. Many of the pieces are from overseas and were brought to the United Kingdom as a result of civil war, coups and revolutions, or acquired as gifts to the monarch. Most of the jewellery dates from the 19th and 20th centuries. The Crown Jewels are worn only at coronations ( St Edward's Crown being used to crown the monarch) and the annual State Opening of Parliament (the Imperial State Crown). At other formal occasions, such as banquets, Elizabeth II wore the jewellery in her collection. She owned more than 300 items of jewellery, including 98 brooches, 46 necklaces, 37 brac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Largest Rough Diamonds
This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). The list is not intended to be complete – e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced. De Beers generally does not publish information relating to large diamond discoveries. See also *List of diamonds * List of emeralds by size *List of individual gemstones *List of gold nuggets by size * List of sapphires by size References External links * {{List of precious stones by size * Largest rough diamonds diamonds Diamonds Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, bu ... Diamonds, rough ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Diamonds
Diamond (gemstone), Diamonds become famous typically for some combination of their size, color and quality. Diamonds occur naturally in many different colors, so the largest diamond of a particular color may not be large in absolute terms, but it may still be considered very desirable. Diamonds may also have high valuations or sale prices, or go on to have a noteworthy ownership history, but this will tend to occur for diamonds that had some outstanding characteristic to begin with. As new diamonds are discovered, the uniqueness of existing ones may diminish and there is no agreed-upon measure of a large or a high-quality diamond, so a strict inclusion criteria for notable diamonds is not attainable. Diamond A diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. At Standard conditions for temperature and pressure, room temperature and pressure, another solid form of carbon known as graphite is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koh-i-Noor Diamond
The Koh-i-Noor ( ; from ), also spelled Kohinoor and Koh-i-Nur, is one of the largest cut diamonds in the world, weighing . It is part of the Crown Jewels of the United Kingdom. The diamond is currently set in the Crown of Queen Elizabeth The Queen Mother. There are multiple conflicting legends on the origin of the diamond. However, in the words of Theo Metcalfe there is 'very meager and imperfect' evidence of the early history of the Koh-i-Noor before the 1740s, that can directly tie it to any ancient diamond. There is no record of its original weight, but the earliest attested weight is 186 old carats (191 metric carats or 38.2 g). The first verifiable record of the diamond comes from a history by Muhammad Kazim Marvi of the 1740s Invasion of Northern India. Marvi notes that the Koh-i-Noor as being one of many stones on the Mughal Peacock Throne that Nader Shah looted from Delhi. The diamond then changed hands between various empires in south and west Asia, until being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Types
Diamond type is a method of scientifically classifying diamonds by the level and type of their chemical impurities. Diamonds are separated into five types: Type Ia, Type Ib, Type 1aB, Type IIa, and Type IIb. The impurities measured are at the atomic level within the crystal lattice of carbon atoms and so, unlike inclusions, require an infrared spectrometer to detect. Different diamond types react in different ways to diamond enhancement techniques. Different types can coexist within a single stone; natural diamonds are often mixes of Type Ia and Ib, which can be determined by their infrared absorption spectrum. Types of Diamond Type I Type I diamonds, the most common class, contain nitrogen atoms as their main impurity, commonly at a concentration of 0.1%. Type I diamonds absorb in both the infrared and ultraviolet region, from 320 nm. They also have a characteristic fluorescence and visible absorption spectrum (see Optical properties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
