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The Deepdene is a 104.52 carats (20.904 g) yellow diamond widely considered to be the largest irradiated diamond in the world.
A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality almost no gem-sized natural diamonds are absolutely perfect. The color of a diamond may be affected by chemical impurities and/or structural defects in the crystal lattice. Depending on the hue and intensity of a diamond's coloration, a diamond's color can either detract from or enhance its value. For example, most white diamonds are discounted in price when more yellow hue is detectable, while intense pink diamonds or blue diamonds can be dramatically more valuable. Of all colored diamonds, red diamonds are the rarest. The Aurora Pyramid of Hope displays a spectacular array of naturally colored diamonds, including red diamonds.
The Pink Star, formerly known as the Steinmetz Pink, is a diamond weighing 59.60 carats, rated in color as Fancy Vivid Pink by the Gemological Institute of America. The Pink Star was mined by De Beers in 1999 in South Africa, and weighed 132.5 carats in the rough. The Pink Star is the largest known diamond having been rated Vivid Pink. As a result of this exceptional rarity, the Beny Steinmetz Group called Steinmetz Diamonds took a cautious 20 months to cut the Pink. It was unveiled in Monaco on 29 May 2003 in a public ceremony.
The Daria-i-Noor, also spelled Darya-ye Noor, is one of the largest cut diamonds in the world, weighing an estimated 182 carats. Its colour, pale pink, is one of the rarest to be found in diamonds. The diamond is currently in the Iranian National Jewels collection of the Central Bank of Iran in Tehran. However, another theory posits that it is in a private collection in Bangladesh.
The Elizabeth Taylor Diamond, formerly known as the Krupp Diamond, is a 33.19-carat (6.638 g) diamond that was bought by Richard Burton for his wife, Elizabeth Taylor in 1968. The diamond was one of a number of significant pieces of jewellery owned by Taylor, her collection also included the 68 carat Taylor–Burton Diamond, which was bought by the couple in 1969. The diamond was sold by Taylor's estate in 2011 for $8.8 million.
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.
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.
"Australian Facetors Guild Limited - Did You Know. Amazing Record Breaking Gemstones". facetorsguild.com.au. Retrieved 2024-07-01.
The Archduke Joseph is a colorless, antique cushion-shaped brilliant, originally weighing 78.54 carat, purchased by Molina Jewelers of Arizona sometime in the late-1990s and slightly re-cut to 76.45 carat to improve clarity and symmetry. It is, on the Gemological Institute of America (GIA) color and clarity scales, a D grade, IF diamond and the largest DIF ever graded at the GIA; and it is of type IIa.
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.
The Blue Moon of Josephine is a 12.03 carats (2.406 g) blue diamond, described as flawless by experts, that was discovered in South Africa in January 2014 and was sold at a Sotheby's auction in Geneva in November 2015 at a record-setting price of $48.4 million. The diamond is the largest cushion-shaped blue stone classified as "fancy vivid" ever to appear at auction.
The Sweet Josephine is a 16.08 carats (3.216 g) pink diamond that was sold at a Christie's auction in Geneva in November 2015 for $28.5 million, a record price for a jewel of its kind and one that exceeded its estimated price of $23-28 million.
The Oppenheimer Blue is a 14.62-carat (2.924 g) vivid blue diamond that in May 2016 became the most expensive jewel ever sold at auction, until April 2017 when it was surpassed by the Pink Star diamond.
Golconda diamonds are mined in the Godavari-Krishna delta region of Andhra Pradesh, 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, are 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 phrase "Golconda diamond" became synonymous with diamonds of incomparable quality.
Blue diamond is a type of diamond which exhibits all of the same inherent properties of the mineral except with the additional element of blue color in the stone. They are colored blue by trace impurities of boron within the crystalline lattice structure. Blue diamonds belong to a subcategory of diamonds called fancy color diamonds, the generic name for diamonds that exhibit intense color.
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.
A red diamond is a diamond which displays red color and exhibits the same mineral properties as colorless diamonds. Red diamonds are commonly known as the most expensive and the rarest diamond color in the world, even more so than pink or blue diamonds, as very few red diamonds have been found. Red diamonds, just like pink diamonds, are greatly debated as to the source of their color, but the gemological community most commonly attributes both colors to gliding atoms in the diamond's structure as it undergoes enormous pressure during its formation.
The Pink Legacy is a pink diamond that was purchased by Harry Winston, Inc. in 2018. It was renamed Winston Pink Legacy by CEO Nayla Hayek. The diamond was sold at a Christie's auction for 50.375 million Swiss francs ($50m), and at $2.6 million per carat it set a world record at the time of its sale for a pink diamond.
The Rock is the world's largest white diamond ever auctioned. It is a nearly colorless 228.31 carat pear-shaped diamond mined in South Africa c. 2000. The diamond is described as larger than a golf ball, and it was auctioned in 2022 for 21.9 million USD.
References
- 1 2 "Art Gallery | Online Auction Viewing of furniture, jewelry, watches, musical instruments and fine art | MAGNIFICENT JEWELS AND THE PRINCIE DIAMOND". Christies.com. Retrieved 2013-09-05.
- 1 2 "34-Carat Princie Diamond Fetches Nearly $40 Million, Setting Two Records". Forbes. 2013-04-16. Retrieved 2013-09-05.
- ↑ thus the Princie would in fact be the third largest pink diamond ever found if one considered weight at discovery
- 1 2 "THE PRINCIE DIAMOND | Jewelry Auction | unmounted, diamond | Christie's". Christies.com. 2013-04-16. Retrieved 2013-09-05.
- ↑ Among those diamonds that have gone through the G.I.A.'s lab
- ↑ "BBC News – Princie Diamond: Rare Indian gem sells for $39m". Bbc.co.uk. 2013-04-17. Retrieved 2013-09-05.