จาก Explanatory Notes ของ นิยายเรื่องนี้ ในThe World's Classics Edition พิมพ์โดย Oxford University Press มีคำอธิบายไว้ดังนี้ (หน้า 523-524) "(2) a Yellow Diamond. - Collins had been reading and making notes from C.W. King's "The Natural History of the Gems" (Bell and Daldy, 1867). ... As he points out in his preface, he has drawn especially on the histories of the Kohinoor and Orloff Diamonds. The Orloff, a stone of unusual yellow tinge, was stolen by a French soldier from the eye of an idol in a Brahmin temple, and late sold to Count Orloff who presented it to Catherine the Great. The Kohinoor, seen in the treasury of Aurungzebe in 1665 by the French traveller Tavernier, passed through various hands, and, with the annexation of the Punjab in 1849, into those of the British. In 1850, the year in which the Moonstone (ในนิยาย) returns to its own people at Somnauth, the British Crown ceremoniously received the Kohinoor. Collins may have intended an irony. In 1851 the diamond was recut in Amsterdam, the fate hanging over the Moonstone throughout. At this period the diamond with the most celebrated history was the Pitt Diamond. Walter de la Mare was told by a Mrs. Reade that a moonstone in the possession of the Reade family had inspired Collins ..."
The Moonstone เดอะ มูนสโตน อัญมณีอาถรรพ์ บทที่ 2.6 - 2.7
