Marco Polo, The Travels of Marco Polo — Volume 2
“ And the King of this Island possesses a ruby which is the finest and biggest in the world; I will tell you what it is like. It is about a palm in length, and as thick as a man’s arm; to look at, it is the most resplendent object upon earth; it is quite free from flaw and as red as fire. Its value is so great that a price for it in money could hardly be named at all. You must know that the Great Kaan sent an embassy and begged the King as a favour greatly desired by him to sell him this ruby, offering to give for it the ransom of a city, or in fact what the King would. ”
