The du Pont family, one of the most prominent American families, descend from French nobility having emigrated to the United States in 1800. Initially establishing a gun-powder manufactory which has become a giant in the chemicals industry and one of the world’s most successful companies. Various members of the family managed DuPont corporation well into the twentieth century and still retain substantial ownership. In 1967 the 43 carat ‘Sydney Queen’ and two other exceptional pear shaped Black Opals were sold by celebrity jeweller Raymond C. Yard to the du Pont family. Fifth generation family member Samuel Hallock du Pont (1901-1974) was so thrilled by these rare gemstones he had to have the lot and later commissioned several Opal jewels by Yard.
A HISTORY OF JEWELLERY: 1100-1870, Joan Evans, 1970 (2nd Ed.). (Drake's Sun Jewel c.1579; Mlle Mars)
A JOURNEY WITH COLOUR Vol II Part B, A HISTORY OF LIGHTNING RIDGE, Len Cram, 2004.(The 'Fire Queen' aka. 'Dunstan's Stone')
Australian Dictionary of Biography: adb.online.anu.edu/biogs; (Eulo Queen, Messers Brassey)
en.wikipedia.org (Empress Elisabeth)
FAMOUS JEWELRY COLLECTORS, Stefano Papi & Alexandra Rhodes, 1999.
GEMS & JEWELLERY, Ove Dragsted, 1975. (Marie Antoinette's 'Forest Fire')
GEMS & JEWELRY TODAY, Marcus Baerwald and Tom Mahoney, 1949. (Romans)
GEMS AND JEWELS - A CONNOISSEUR'S GUIDE, Benjamin Zucker, 1984.
refers to A HISTORY OF JEWELLERY 1100-1870 by Joan Evans and PRINCELY MAGNIFICENCE by E.A. Jobbins. (4)
www.gurhan.com (Jennifer Aniston, Sheryl Crow)
HOLLYWOOD JEWELS, Penny Proddow Debra Healy & Marion Fasel, 1992.
JEWELRY 7000 YEARS, Hugh Tait (ed), 1991. (Grenville jewel)
JEWELS: A SECRET HISTORY, Victoria Finlay, 2006. (Pliny-Nonius-Marc Antony, Napoleon, Sir Francis Drake, Sir Christopher Hatton)
LALIQUE, Jesse McDonald, 1995.
People.com, November 26 1990, Vol 34 No21.(Jane Fonda & Ted Turner)
QUEENS' JEWELS, Vincent Meylan, 2002.
RENE LALIQUE: EXCEPTIONAL JEWELRY, 1890-1912, Yvonne Brunhammer, 2007.
ROYAL JEWELS; FROM CHARLEMAGNE TO THE ROMANOVS, Diana Scarisbrick, Christophe Vachaudez & Jan Walgrave, 2008. (Sir Francis Drake)
THE ENGRAVED GEMS OF CLASSICAL TIMES, John Henry Middleton. 1891. (2,000,000 Secterces)
The London Independent, August 14, 2004. (Brad & Jennifer)
The New York Times, May 20, 1906, Sunday Magazine Section - 'Gowns Seen at May Weddings' by Marie Weldon
THE QUEEN'S JEWELS - THE PERSONAL COLLECTION OF ELIZABETH II, Leslie Field, 1987.
TULLIE CORNWAITHE WOLLASTON, D.P.T Wollaston, 1994.
WIENER WERKSTATTE JEWELRY, Hatje Cantz, 2008.
THE EULO QUEEN, painting by Dorothy Gauvin (black & white taken from original in colour)
Russell, W.H., A Memorial of the Marriage of HRH Albert Edward Prince of Wales and HRH Alexandra Princess of Denmark. Illustrated London News 21 Mar 1863; The Times 27 Jan 1858; 05 Jul 1862 www.royal-magazin.de/england/queen-alexandra/queen-alexandra-opale.htm
YARD: THE LIFE & MAGNIFICENT JEWELRY OF RAYMOND C. YARD, Natasha Kuzmanovic, 2007. (du Pont)
theage.com.au/articles/2002/03/19/1015909939071.html (Laurence Hope)
www.turgingsomedrama.com/wildolive/opal.htm (Olive Custance -'Opal')