The Hope Diamond is a 45.52 carats diamond extracted in the 17th century from the Kollur Mine in Guntur, India. It is blue in color due to trace amounts of boron. Its exceptional size has revealed new information about the formation of diamonds.
Harry Winston was an American jeweler. He donated the Hope Diamond to the Smithsonian Institution in 1958 after owning it for a decade. He also traded the Portuguese Diamond to the Smithsonian in 1963 in exchange for 3,800 carats of small diamonds.
The Pink Panthers are an international jewel thief network responsible for a number of robberies and thefts described as some of the most audacious in the history of organized crime. The organization has roughly 800 core members, many of whom are ex-soldiers with extensive military and paramilitary backgrounds. Both women and men play an equal part in the structure of the organization. The organization's membership mostly consists of Serbian, Montenegrin and other former Yugoslavian state citizens, believed to be remnants of the Bosnian War who have made criminal use of their militaristic skills. The organization was named by Interpol after The Pink Panther series of crime comedy films.
De Grisogono is a Swiss luxury jeweller founded in Geneva, Switzerland, in 1993 by Lebanese-Italian black diamond specialist Fawaz Gruosi. The Italian name Grisogono is derived from the Latin Chrysogonus which comes from the Greek Chrysogonos χρῡσό-γονος, meaning "begotten of gold". The company filed for bankruptcy on 29 January 2020. In 2022 it was bought by the Damac Group of Dubai.
Heidi Horten was an Austrian billionaire and art collector. She was the widow of businessman Helmut Horten, whose wealth was famously rooted in Nazi profiteering. In May 2020 Forbes estimated her net worth at US$3.0 billion.
The Nassak Diamond is a large, 43.38 carats (8.676 g) Golconda Diamond that originated as a larger 89 carat diamond in the 15th century in India. Found in Golconda mines of Kollur and originally cut in India, the diamond was the adornment in the Trimbakeshwar Shiva Temple, near Nashik, in the state of Maharashtra, India from at least 1500 to 1817. The British East India Company captured the diamond through the Third Anglo-Maratha War and sold it to British jewellers Rundell and Bridge in 1818. Rundell and Bridge recut the diamond in 1818, after which it made its way into the handle of the 1st Marquess of Westminster's dress sword.
The Wittelsbach-Graff Diamond is a 31.06-carat (6.212 g) deep-blue diamond with internally flawless clarity, originating in the Kollur Mine, India. Laurence Graff purchased the Wittelsbach Diamond in 2008 for £16.4 million. In 2010, Graff revealed he had had the diamond cut by three diamond cutters to remove flaws. The diamond was now more than 4 carats (800 mg) lighter and was renamed the Wittelsbach-Graff Diamond. There is controversy, as critics claim the recutting has so altered the diamond as to make it unrecognisable, compromising its historical integrity.
The Graff Diamonds robbery took place on 6 August 2009 when two men posing as customers entered the premises of Graff Diamonds in New Bond Street, London and stole jewellery worth nearly £40 million. It was believed to be the largest ever gems heist in Britain at the time, and the second largest British robbery after the £53 million raid on a Securitas depot in Tonbridge, Kent, in 2006. The robbers' haul totalled 43 items of jewellery, consisting of rings, bracelets, necklaces and wristwatches. One necklace alone has been reported as being worth more than £3.5m. Britain's previous largest jewellery robbery also took place at Graff's, in 2003.
Graff is a British multinational jeweller based in London. It was founded by British jeweller Laurence Graff in 1960. A vertically integrated company, Graff operations comprise the design, manufacture and retail distribution of jewellery and watches.
The Graff Pink is a rare 24.78 carat pink diamond, once owned by American celebrity jeweller Harry Winston. The diamond, mounted in a ring, was sold by Sotheby's auctioneers in Geneva, Switzerland on 16 November 2010. Before its sale, the stone was expected to enter the list of the top ten most expensive diamonds in the world; on selling for US $46 million it became the most expensive single jewel ever sold at auction at that time.
Alexandre Reza was a Paris-based jeweler known for his diverse and rare collection of precious gemstones. He is lauded as the greatest gem collector of modern times.
The Beau Sancy is a 34.98-carat diamond originally mined in India, which is cut in a modified pear double rose-cut shape. Since appearing in Europe in the 16th century, the Beau Sancy has been owned by a number of European royal houses, among them the House of Medici and the kings of England and Prussia. After more than 300 years in the possession of the House of Hohenzollern, the diamond was sold in 2012 at Sotheby's auction in Geneva for $9.57 million to an anonymous buyer.
The Princie Diamond is an approximately 34.65 carat cushion-cut fancy intense pink diamond discovered 300 years ago in the Golconda mines. Christie's say that the Princie Diamond is believed to be the fourth largest pink diamond in the world, after the Daria-i-Noor, the Noor-ol-Ain - which are both part of the Iranian Crown Jewels; both were cut, according to experts, from one single c. 242 carat pink diamond, - and the Pink Star, a diamond weighing 59.60 carats.
The Winston Blue is the name given to what was the largest flawless vivid blue diamond bought by Harry Winston, Inc. on May 15, 2014, from an anonymous person for $23.8 million at Christie's Geneva Magnificent Jewels sale. The approximately $1.8003 million per carat price paid for the 13.22-carat diamond is a world record for a blue diamond. Harry Winston, Inc. had also bought a 101.73-carat colorless diamond named Winston Legacy at Christie's Geneva jewelry auction in 2013. The American luxury jeweler had then paid $26.7 million for the colorless diamond, which is a world record for the highest price paid per carat for a colorless diamond.
Lesedi La Rona, formerly known in media as Karowe AK6 or as Quad 1 by the personnel at the mine, is the fourth-largest diamond ever found, and the third-largest of gem quality. It was found in the Karowe mine, in Botswana on 16 November 2015.
Golconda diamonds are mined in the Godavari delta region of the present-day states Andhra Pradesh and Telangana, India. Golconda Fort in the western part of modern-day Hyderabad, was a seat of the Golconda Sultanate and became an important centre for diamond enhancement, lapidary and trading. Golconda diamonds are graded as Type IIa, formed of pure carbon, are devoid of nitrogen, and are large with high clarity. They are often described as diamonds of the first water, making them among history's most celebrated diamonds. The word "Golconda diamond" became symbolic of diamonds of incomparable quality.
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.
The Three Brothers was a piece of jewellery created in the late 14th century, which consisted of three rectangular red spinels arranged around a central diamond. The jewel is known for having been owned by a number of important historical figures. After its commission by Duke John the Fearless of Burgundy, the jewel was part of the Burgundian crown jewels for almost 100 years, before passing into the possession of German banker Jakob Fugger.
