Black Prince's Ruby
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| Black Prince's Ruby | |
|---|---|
 Cyril James Humphries Davenport · Public domain · source | |
| Name | Black Prince's Ruby |
| Type | Spinel |
| Weight | 170 carats (approx.) |
| Color | Deep red |
| Origin | Historically attributed to Badakhshan region |
| Current location | Tower of London, part of the Crown Jewels |
Black Prince's Ruby is a large red spinel incorporated into the British Crown Jewels, famed for its size, color, and storied passage through medieval and early modern dynasties. The gemstone has been associated with notable figures and events across Europe, Asia, and Africa, appearing in regalia used at coronations, state ceremonies, and in diplomatic contexts. Its provenance intersects with a network of monarchs, conquerors, and empires that shaped Eurasian and North African history.
Description and physical characteristics
The gem is a red spinel weighing roughly 170 carats, comparable in mass to other notable jewels such as the Koh-i-Noor and the Hope Diamond, and shares provenance narratives with stones from the Badakhshan mines. Its deep pigeon-blood red hue is similar to descriptions of rubies prized by the Mogul Empire and the Ottoman Empire, though mineralogists classify it with spinels like the Samarkand spinel rather than corundum specimens from Mysore or Golconda. Optical and crystallographic properties align with specimens studied at institutions including the Natural History Museum, London and the Smithsonian Institution. The stone has been described in the inventories of the Crown of England, alongside items such as the St Edward's Crown and the Sovereign's Sceptre with Cross, often compared in catalogues with the Regent Diamond and the Cullinan I for ceremonial prominence.
History and provenance
Accounts trace the gem through a chain of possession that includes figures and polities like the Moorish courts of medieval Granada, the princely states of the Delhi Sultanate, and the courts of the Emirate of Granada and the Kingdom of Castile. It is reputed to have been in the armoury of the commander associated with the Crusades and later in the possession of the Iberian nobility tied to the Reconquista and the Treaty of Tordesillas era. The stone enters English royal inventories during the reign of Edward III’s heir, the Edward of Woodstock, Earl of Chester (the Black Prince), after campaigns that involved interaction with figures such as Don Juan Manuel and dynasties like the Bourbons and the Plantagenets. Subsequent royal custody passed through monarchs including Henry V, Henry VIII, Charles I, and the Restoration court of Charles II, surviving events such as the English Civil War and the Glorious Revolution. During the reigns of William III and Queen Victoria, the gem was documented in royal inventories alongside treasures catalogued by curators employed from institutions like the British Museum and artisans from the Goldsmiths' Company.
Role in British Crown Jewels
As part of the regalia housed at the Tower of London, the gem has featured in crown pieces such as the Imperial State Crown and the St Edward's Crown when set by royal goldsmiths commissioned by officers from the College of Arms and overseen by the Lord Chamberlain. It has played a symbolic role in coronations presided over by archbishops like the Archbishop of Canterbury and witnessed in ceremonies involving monarchs such as George V, Elizabeth II, and Charles III. Its inclusion in regalia designed or modified by craftsmen associated with the Crown Jewellers and patrons such as Prince Albert reflects tastes influenced by collectors like Sir Hans Sloane and advisors from the Royal Collection Trust. The gem has also been noted during state occasions in which foreign dignitaries from nations like France, Russia, Japan, and the United States observed British ceremonial display.
Cultural significance and legends
Legends surrounding the stone connect it to narratives popularized by chroniclers and poets tied to courts such as Geoffrey Chaucer’s milieu and historians like Edward Gibbon and Thomas Fuller. Folklore links the gem to talismans and amulets esteemed in the Mughal and Safavid courts, evoking parallels with the lore surrounding the Diamond of South Africa and the Crown of Thorns narratives encountered in European devotional culture. Writers from the Romantic and Victorian periods including Lord Byron and Oscar Wilde made oblique references to famed jewels in essays and fiction that shaped public imagination about stones like this spinel. Its reputed curses and auspicious attributions are often compared with myths attached to the Koh-i-Noor and literature by authors such as Rudyard Kipling and William Makepeace Thackeray who depicted imperial treasure in works addressing British Empire themes.
Conservation and display history
Conservation efforts have been managed by institutions including the Royal Collection, with scientific assessment drawing on expertise from the Natural History Museum, London, conservators formerly at the Victoria and Albert Museum, and gemological laboratories like those at the Gemological Institute of America. The jewel has been exhibited during public openings of the Tower of London and featured in temporary displays coordinated with museums such as the Victoria and Albert Museum and the British Museum, often catalogued alongside objects examined by curators from the National Portrait Gallery and scholars at the University of Oxford and the University of Cambridge. Security and preservation practices involve protocols informed by agencies like Historic Royal Palaces and advisory input from conservators who have collaborated with the City of London Police and the Metropolitan Police Service for artifact protection and visitor safety.