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Cullinan Diamond

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"Star of Africa" redirects here. For other uses, see Star of Africa (disambiguation).

Cullinan Diamond
The rough diamond
Weight3,106 carats (621.2 g)
ColourNear colourless[1]
Cut105 stones of assorted cuts
Country of originSouth Africa
Mine of originPremier Mine
Cut byJoseph Asscher & Co.
Original ownerPremier Diamond Mining Company
OwnerCharles III in right of The Crown

The Cullinan Diamond is the largest gem-quality rough diamond ever found,[2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable interest, it was still unsold after two years. In 1907, the Transvaal Colony government bought the Cullinan and Prime Minister Louis Botha presented it to Edward VII, the British king who reigned over the territory. It was then cut by Joseph Asscher & Co. in Amsterdam.

Cullinan produced stones of various cuts and sizes, the largest of which is named Cullinan I, and named the Great Star of Africa by Edward VII, and at 530.4 carats (106.08 g) it is the largest clear cut diamond in the world. The stone is mounted in the head of the Sovereign's Sceptre with Cross. The second-largest is Cullinan II or the Second Star of Africa, weighing 317.4 carats (63.48 g), mounted in the Imperial State Crown. Both are part of the Crown Jewels of the United Kingdom. Seven other major diamonds, weighing a total of 208.29 carats (41.66 g), were privately owned by Elizabeth II, who inherited them from her grandmother, Queen Mary, in 1953. The Queen also owned minor brilliants and a set of unpolished fragments.

Discovery and early history

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Frederick Wells, mine manager, with the diamond

The Cullinan is estimated to have formed in Earth's mantle transition zone at a depth of 410–660 km (255–410 miles) and reached the surface 1.18 billion years ago.[3] It was found 5.5 metres (18 ft) below the surface at Premier Mine in Cullinan, Transvaal Colony, by Frederick Wells, surface manager at the mine, on 26 January 1905. It was approximately 10.1 centimetres (4.0 in) long, 6.35 centimetres (2.50 in) wide, 5.9 centimetres (2.3 in) deep, and weighed 3,106 carats (621.2 grams).[4] Newspapers called it the "Cullinan Diamond", a reference to Sir Thomas Cullinan, who opened the mine in 1902.[5] It was three times the size of the Excelsior Diamond, found in 1893 at Jagersfontein Mine, weighing 972 carats (194.4 g). Four of its eight surfaces were smooth, indicating that it once had been part of a much larger stone broken up by natural forces. It had a blue-white hue and contained a small pocket of air, which at certain angles produced a rainbow, or Newton's rings.[6]

Shortly after its discovery, Cullinan went on public display at the Standard Bank in Johannesburg, where it was seen by an estimated 8,000–9,000 visitors. In April 1905, the rough gem was deposited with Premier Mining Co.'s London sales agent, S. Neumann & Co.[7] Due to its immense value, detectives were assigned to a steamboat that was rumoured to be carrying the stone, and a parcel was ceremoniously locked in the captain's safe and guarded on the entire journey. It was a diversionary tactic – the stone on that ship was fake, meant to attract those who would be interested in stealing it. Cullinan was sent to the United Kingdom in a plain box via registered post.[8] On arriving in London, it was conveyed to Buckingham Palace for inspection by King Edward VII. Although it drew considerable interest from potential buyers, Cullinan went unsold for two years.[4]

Presentation to Edward VII

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Transvaal Prime Minister Louis Botha suggested buying the diamond for Edward VII as "a token of the loyalty and attachment of the people of the Transvaal to His Majesty's throne and person".[9] In August 1907, a vote was held in the Legislative Council[10] on the Cullinan's fate, and a motion authorising the purchase was carried by 42 votes in favour to 19 against. Initially, Henry Campbell-Bannerman, then British Prime Minister, advised the king to decline the offer, but he later decided to let Edward VII choose whether or not to accept the gift.[11] Eventually, he was persuaded by Winston Churchill, then Colonial Under-Secretary. For his trouble, Churchill was sent a replica, which he enjoyed showing off to guests on a silver plate.[12] The Transvaal Colony government bought the diamond on 17 October 1907 for £150,000,[13] which adjusted for pound-sterling inflation is equivalent to £19 million in 2023.[14] Due to a 60% tax on mining profits, the Treasury received some of its money back from the Premier Diamond Mining Company.[15]

The diamond was presented to the king at Sandringham House by Agent-General of the colony, Sir Richard Solomon, on 9 November 1907 – his 66th birthday – in the presence of a large party of guests, including the Queen of Sweden, the Queen of Spain, the Duke of Westminster and Lord Revelstoke.[16] The king asked his colonial secretary, Lord Elgin, to announce that he accepted the gift "for myself and my successors" and that he would ensure "this great and unique diamond be kept and preserved among the historic jewels which form the heirlooms of the Crown".[12] King Edward gave the larger diamond the name Great Star of Africa, while the smaller diamond was named the Smaller Star of Africa.[17]

Cutting process

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Joseph Asscher making the split

The king chose Joseph Asscher & Co. of Amsterdam to cleave and polish the rough stone into brilliant gems of various cuts and sizes. Abraham Asscher collected it from the Colonial Office in London on 23 January 1908.[18] He returned to the Netherlands by train and ferry with the diamond in his coat pocket.[13] Meanwhile, to much fanfare, a Royal Navy ship carried an empty box across the North Sea, again throwing off potential thieves. Even the captain was unaware that his "precious" cargo was a decoy.[19]

On 10 February 1908, the rough stone was split in half by Joseph Asscher at his diamond-cutting factory in Amsterdam.[20] At the time, technology had not yet evolved to guarantee the quality of modern standards, and cutting the diamond was difficult and risky. After weeks of planning, an incision 0.5 inches (13 mm) deep was made to enable Asscher to cleave the diamond in one blow. Making the incision alone took four days, and a steel knife broke on the first attempt,[4] but a second knife was fitted into the groove and split the stone cleanly in two along one of four possible cleavage planes.[21] In all, splitting and cutting the diamond took eight months, with three people working 14 hours per day to complete the task.[4]

"The tale is told of Joseph Asscher, the greatest cleaver of the day," wrote Matthew Hart in his book Diamond: A Journey to the Heart of an Obsession (2002), "that when he prepared to cleave the largest diamond ever known … he had a doctor and nurse standing by and when he finally struck the diamond … he fainted dead away".[22] Lord Ian Balfour, in his book Famous Diamonds (2009), dispels the fainting story, suggesting it was more likely Joseph would have celebrated, opening a bottle of champagne.[18] When Joseph's nephew Louis heard the story, he exclaimed "No Asscher would ever faint over any operation on any diamond".[23]

Nine largest stones split from the rough Cullinan diamond

Diamonds cut from the Cullinan

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Cullinan produced 9 major stones of 1,055.89 carats (211.178 g) in total,[24] plus 96 minor brilliants and some unpolished fragments weighing 19.5 carats (3.90 g).[25] All but the two largest stones – Cullinans I and II – remained in Amsterdam by arrangement as the fee for Asscher's services,[26] until the South African government bought them (except Cullinan VI, which Edward VII had purchased and given to his wife Queen Alexandra in 1907), and the High Commissioner for Southern Africa presented them to Queen Mary on 28 June 1910.[12] Mary also inherited Cullinan VI from Alexandra, and she left all her Cullinan diamonds to her granddaughter Elizabeth II in 1953.[27] Cullinans I and II are part of the Crown Jewels,[2] which belong to the King in right of the Crown.[28]

Asscher sold the minor stones to the South African government, which distributed them to Queen Mary; Louis Botha, then prime minister of South Africa; the diamond merchants Arthur and Alexander Levy, who supervised the cutting of Cullinan;[29] and Jacob Romijn (later Romyn), who co-founded the first trade union in the diamond industry.[30] Some were set by Mary into a long platinum chain, which Elizabeth never wore in public, saying that "it gets in the soup".[31] In the 1960s, two minor Cullinan diamonds owned by Louis Botha's heirs were analysed at the De Beers laboratory in Johannesburg and found to be completely free of nitrogen or any other impurities.[32] Cullinans I and II were examined in the 1980s by gemologists at the Tower of London and both graded as colourless type IIa.[33]

Cullinan I

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The nine major stones. Top: Cullinans II, I, and III. Bottom: Cullinans VIII, VI, IV, V, VII and IX.

Cullinan I, or the Great Star of Africa, is a pendeloque-cut brilliant weighing 530.2 carats (106.04 g) and has 74 facets.[34] It is set at the top of the Sovereign's Sceptre with Cross, made in 1661, which had to be redesigned in 1910 to accommodate it. Cullinan I was surpassed as the world's largest cut diamond by the 545.67-carat (109.134 g) brown Golden Jubilee Diamond in 1992,[35] but remains the largest colourless cut diamond in the world.[36] In terms of clarity, it has a few tiny cleavages and a small patch of graining. The 5.89 cm × 4.54 cm × 2.77 cm (2.32 in × 1.79 in × 1.09 in) diamond is fitted with loops and can be taken out of its setting to be worn as a pendant suspended from Cullinan II to make a brooch.[37] Queen Mary, wife of George V, often wore it like this.[38] In 1908, the stone was valued at US$2.5 million (equivalent to US$60 million in 2023)[39]– two and a half times the rough Cullinan's estimated value.[40]

Cullinan II

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Cullinan II, or the Second Star of Africa, is a cushion-cut brilliant with 66 facets weighing 317.4 carats (63.48 g) set in the front of the Imperial State Crown,[34] below the Black Prince's Ruby (a large spinel).[41] It measures 4.54 cm × 4.08 cm × 2.42 cm (1.79 in × 1.61 in × 0.95 in). The diamond has a number of tiny flaws, scratches on the table facet, and a small chip at the girdle. Like Cullinan I, it is held in place by a yellow gold enclosure, which is screwed onto the crown.[37]

Cullinan III

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Cullinan III, or the Lesser Star of Africa, is pear-cut and weighs 94.4 carats (18.88 g).[34] In 1911, Queen Mary, wife and queen consort of George V, had it set in the top cross pattée of a crown that she personally bought for her coronation.[42] In 1912, the Delhi Durbar Tiara, worn the previous year by Mary instead of a crown at the Delhi Durbar, where her husband wore the Imperial Crown of India, was also adapted to take Cullinans III and IV.[43] In 1914, Cullinan III was permanently replaced on the crown by a crystal model. Elizabeth II frequently wore Cullinan III in combination with Cullinan IV as a brooch. In total, the brooch is 6.5 cm (2.6 in) long and 2.4 cm (0.94 in) wide.[44] Cullinan III has also been used as a pendant on the Coronation Necklace, where it occasionally replaced the 22.4-carat (4.48 g) Lahore Diamond.[45][46]

Cullinan IV

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Queen Mary wearing Cullinans I and II as a brooch on her chest, III as a pendant on the Coronation Necklace, and IV in the base of her crown, below the Koh-i-Noor

Cullinan IV, also referred to as a Lesser Star of Africa, is square-cut and weighs 63.6 carats (12.72 g).[34] It was also set in the base of Queen Mary's Crown but was removed in 1914. On 25 March 1958, while she and Prince Philip were on a state visit to the Netherlands, Queen Elizabeth II revealed that Cullinan III and IV are known in her family as "Granny's Chips". They visited the Asscher Diamond Company, where Cullinan had been cut 50 years earlier. It was the first time the Queen had worn the brooch publicly. During her visit, she unpinned the brooch and offered it for examination to Louis Asscher, nephew of Joseph Asscher, who split the rough diamond. Aged 84, he was deeply moved that the Queen had brought the diamonds with her, knowing how much it would mean to him seeing them again after so many years.[47]

Cullinan V

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Cullinan V is an 18.8-carat (3.76 g) heart-shaped diamond set in the centre of a platinum brooch that formed a part of the stomacher made for Queen Mary to wear at the Delhi Durbar in 1911. The brooch was designed to show off Cullinan V and is pavé-set with a border of smaller diamonds. It can be suspended from the VIII brooch and can be used to suspend the VII pendant. It was often worn like this by Mary.[45] In May 2023, the brooch was placed on the front of cross Queen Mary's Crown for the Coronation of Queen Camilla instead of the traditional and controversial Koh-i-Noor.[48]

Cullinan VI

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Cullinan VI is marquise-cut and weighs 11.5 carats (2.30 g).[34] It hangs from the brooch containing Cullinan VIII and forming part of the stomacher of the Delhi Durbar parure. Cullinan VI along with VIII can also be fitted together to make yet another brooch, surrounded by some 96 smaller diamonds. The design was created around the same time that the Cullinan V heart-shaped brooch was designed, both having a similar shape.[49]

Cullinan VII

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Cullinan VII is also marquise-cut and weighs 8.8 carats (1.76 g).[34] It was originally given by Edward VII to his wife and consort Queen Alexandra. After his death she gave the jewel to Queen Mary, who had it set as a pendant hanging from the diamond-and-emerald Delhi Durbar necklace, part of the parure.[50]

Cullinan VIII

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Cullinan VIII is an oblong-cut diamond weighing 6.8 carats (1.36 g).[34] It is set in the centre of a brooch forming part of the stomacher of the Delhi Durbar parure. Together with Cullinan VI it forms a brooch.[49]

Cullinan IX

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Cullinan IX is smallest of the principal diamonds to be obtained from the rough Cullinan. It is a pendeloque or stepped pear-cut stone, weighs 4.39 carats (0.878 g), and is set in a platinum ring known as the Cullinan IX Ring.[51]

See also

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Citations

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  1. ^ Bariand and Duchamp, p. 101.
  2. ^ a b Scarratt and Shor, p. 120.
  3. ^ Smith, et al., pp. 1403–1405
  4. ^ a b c d "Jewellery made from the world's largest diamond is to go on display" (PDF). Royal Collection Trust. 15 May 2012. Archived from the original (PDF) on 22 December 2017. Retrieved 21 December 2017.
  5. ^ Scarratt and Shor, p. 122.
  6. ^ Hatch, pp. 170–172.
  7. ^ Scarratt and Shor, p. 123.
  8. ^ Dickinson, pp. 110–111.
  9. ^ Lee, pp. 489–490.
  10. ^ The Cullinan Diamond Centennial, Gems and Gemology, 2006
  11. ^ Helme, p. 86.
  12. ^ a b c Field, p. 72.
  13. ^ a b Bariand and Duchamp, p. 97.
  14. ^ United Kingdom Gross Domestic Product deflator figures follow the MeasuringWorth "consistent series" supplied in Thomas, Ryland; Williamson, Samuel H. (2024). "What Was the U.K. GDP Then?". MeasuringWorth. Retrieved 15 July 2024.
  15. ^ Cartwright, p. 73.
  16. ^ "SECOND EDITION. The King's Birthday. Presentation of the Cullinan Diamond". The Sydney Morning Herald. New South Wales, Australia. 11 November 1907. p. 5. Archived from the original on 2 October 2020. Retrieved 10 April 2020 – via Trove.
  17. ^ Princewill, Nimi (15 September 2022). "Royal gift or 'stolen' gem? Calls for UK to return 500 carat Great Star of Africa diamond". CNN. Archived from the original on 1 September 2023. Retrieved 23 May 2023.
  18. ^ a b Balfour, p. 71.
  19. ^ Seff and Seff, p. 252.
  20. ^ Helme, p. 88.
  21. ^ Crookes, pp. 77–79.
  22. ^ Hart, p. 204.
  23. ^ Koskoff, p. 174.
  24. ^ Spencer, pp. 318–326.
  25. ^ Balfour, p. 73.
  26. ^ Balfour, p. 73.
  27. ^ Dickinson, p. 114.
  28. ^ "Crown Jewels". Parliamentary Debates (Hansard). Vol. 211. United Kingdom: House of Commons. 16 July 1992. col. 944W.
  29. ^ Scarratt and Shor, p. 125.
  30. ^ Balfour, pp. 73–75.
  31. ^ "Life". Time. Vol. 10. July 1987. p. 48.
  32. ^ Helme, p. 90.
  33. ^ Scarrat and Shor, pp. 126, 131.
  34. ^ a b c d e f g Manutchehr-Danai, p. 118.
  35. ^ "The Largest Cut Diamond in the World". Gem & Jewellery News. 2 (1): 1. December 1992. ISSN 0964-6736.
  36. ^ "The Sovereign's Sceptre with Cross". Royal Collection Trust. Inventory no. 31712.
  37. ^ a b Scarratt and Shor, p. 128.
  38. ^ Mears, et al., p. 30.
  39. ^ Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved 30 November 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.
  40. ^ Morgan, p. 262.
  41. ^ "The Imperial State Crown". Royal Collection Trust. Inventory no. 31701.
  42. ^ Keay, p. 175.
  43. ^ "Delhi Durbar Tiara". Royal Collection Trust. Archived from the original on 5 March 2016.
  44. ^ "Cullinan III and IV Brooch". Royal Collection Trust. Archived from the original on 6 December 2018. Retrieved 11 December 2017.
  45. ^ a b "The diamonds and their history" (PDF). Royal Collection Trust. Archived from the original (PDF) on 31 January 2016. Retrieved 24 January 2016.
  46. ^ "Jewellery made from the Cullinan Diamond" (PDF). Royal Collection Trust. Archived from the original (PDF) on 26 October 2012. Retrieved 11 December 2017.
  47. ^ Mears, p. 150.
  48. ^ Caroline Davies (14 February 2023). "Camilla to wear recycled crown without Koh-i-Noor diamond at coronation". The Guardian.
  49. ^ a b "Cullinan VI and VIII Brooch". Royal Collection Trust. Archived from the original on 15 May 2019. Retrieved 11 December 2017.
  50. ^ "Delhi Durbar Necklace and Cullinan VII Pendant". Royal Collection Trust. Archived from the original on 15 May 2019. Retrieved 11 December 2017.
  51. ^ "Cullinan IX Ring". Royal Collection Trust. Archived from the original on 15 May 2019. Retrieved 11 December 2017.

General and cited references

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Further reading

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  • Shipley, Robert M. (Summer 1941). "The Cullinan or Star of Africa" (PDF). Important Diamonds of the World (column). Gems & Gemology. Vol. 3, no. 10. pp. 159–160, 150. Retrieved 26 January 2023.
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