Carbuncle (gemstone)

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A red and a blue garnet

A carbuncle /ˈkɑːrbʌŋkəl/ is any red gemstone, most often a red garnet.[1]

A carbuncle can also be a stone with magical properties, usually capable of providing its own illumination to an otherwise dark interior. This is encountered in a number of medieval texts. In the French romance of c. 1150, Le Pèlerinage de Charlemagne à Jérusalem et à Constantinople, a fictionalized Charlemagne finds that his bedchamber in Emperor Hugo’s palace at Constantinople has such lighting. An English translation from the Welsh version of c. 1200 says, “Within it was a golden column, and for light a carbuncle stone in its end, making it always day, when the day was gone.”[2] In the initial letter ostensibly written by the mythical Prester John and sent to European heads of state in 1165, the priest-king claims that carbuncles regularly serve as indoor lighting: “Indeed at either end of the palace, above the roof-ridge, are two golden apples, and in each of these are two carbuncles, so that the gold shines in the day and the carbuncles sparkle at night.” In another of Prester John's architectural wonders there is “a carbuncle of such size as a large amphora, by which the palace is illuminated as the world is illuminated by the sun.”[3] The divinely illuminated stones in the Book of Mormon, Ether 6:2-3, match this description.[4]

Cultural references[edit]

Red garnet
  • Exodus 28:18 and 39:11 both refer to the carbuncle's use as the third stone in the breastplate of the Hoshen[5][6].
  • Ezekiel 28:13 is a lamentation on the king of Tyrus: "... every precious stone was thy covering, the carnelian, topaz, and the emerald, ..., the carbuncle , and the smaragd, and gold".[7]
  • Isaiah 54:12 uses carbuncle to convey the value of the Lord's blessing [and promise] to His barren woman servant: (Isaiah 54:1) "Sing, O barren, thou that didst not bear, break forth into singing, and cry aloud, thou that didst not travail; [... v.5] For thy Maker is thine husband; [... v.12] And I will make thy pinnacles of rubies, and thy gates of carbuncles, and all thy border of precious stones."[8]
  • Bede says, "Carbuncle, of a red colour, which the eyes love; from a distance it emits splendour, which close up is not seen."[9]
  • The eponymous gem in the Sherlock Holmes tale "The Adventure of the Blue Carbuncle" is referred to as a carbuncle (although, being blue, it is technically not a carbuncle).
  • A carbuncle plays a mystic role in Nathaniel Hawthorne's story, "The Great Carbuncle."
  • Hamlet by William Shakespeare refers to carbuncles in act 2 scene 2 line 401:
"With eyes like carbuncles, the hellish Pyrrhus..."
  • In John Milton's Paradise Lost, Book 9, Satan's eyes are like carbuncles (line 500), an image Milton may have borrowed from the Roman de la Rose[10]
  • A Carbuncle is one of the last items listed in Sir Thomas Browne's catalogue of lost, rumoured and imaginary books, pictures and objects Musaeum Clausum (circa 1675).
  • Carbuncle is a recurring creature in ongoing video game series Final Fantasy since Final Fantasy V in 1992. While its design ranges from a small, cute mammal to a large terrifying reptile, it always has a red gemstone on its forehead.
  • In Anne Rice's The Witching Hour (novel), Richard Llewellyn shows Aaron Lightner of The Talamasca a "beautiful carbuncle ring".


  1. ^ Shipley, Robert M. Dictionary of Gems and Gemology, 5th edition, Gemological Institute of America, 1951, pp40
  2. ^ Journey of Charlemagne at the Celtic Literature Collective
  3. ^ A Letter from Prester John
  4. ^ Ether 6
  5. ^
  6. ^
  7. ^
  8. ^
  9. ^ "Carbunculus colore rufeo, quem oculi amant; a longe splendorem spirat, et prope non videtur" (De Duodecim Lapidibus, in Opera, Vol. 3 (Basle, 1563), p. 662).
  10. ^ Mulryan, John (1982). Milton and the Middle Ages. Bucknell UP. pp. 169–72. ISBN 9780838750360.

External links[edit]

  • The dictionary definition of carbuncle at Wiktionary