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Auction archive: Lot number 1172

Chrysoberyl var. Alexandrite

Estimate
US$0
Price realised:
US$1,750
Auction archive: Lot number 1172

Chrysoberyl var. Alexandrite

Estimate
US$0
Price realised:
US$1,750
Beschreibung:

Malashevo, Ural Mountains, Russia Named for Tsar Alexander II, this rare and beautiful gem is infrequently used in modern jewelry. In antique Russian jewelry it was seen more frequently, since Russian master jewelers loved this stone. Tiffany's master gemologist George Frederick Kunz (1856-1932) was also fascinated by alexandrite, and the jeweler's firm produced some beautiful rings and platinum ensembles at the turn of the last century. Smaller alexandrites were occasionally also used in Victorian jewelry from England. The present stone is from the classic locality of Russia and displays a large face up size. Alexandrite is very scarce variety of chrysoberyl differing in that it not only contains iron and titanium, but also chromium as a major impurity--and it is this very element which accounts for the spectacular color change. Green or bluish-green in daylight, alexandrite turns a soft shade of red, purplish-red in incandescent light. Weighing approximately 4.22 carats and measuring 13.0 x 7.0 x 5.4mm

Auction archive: Lot number 1172
Auction:
Datum:
10 Dec 2012
Auction house:
Bonhams London
Los Angeles 7601 W. Sunset Boulevard Los Angeles CA 90046 Tel: +1 323 850 7500 Fax : +1 323 850 6090 info.us@bonhams.com
Beschreibung:

Malashevo, Ural Mountains, Russia Named for Tsar Alexander II, this rare and beautiful gem is infrequently used in modern jewelry. In antique Russian jewelry it was seen more frequently, since Russian master jewelers loved this stone. Tiffany's master gemologist George Frederick Kunz (1856-1932) was also fascinated by alexandrite, and the jeweler's firm produced some beautiful rings and platinum ensembles at the turn of the last century. Smaller alexandrites were occasionally also used in Victorian jewelry from England. The present stone is from the classic locality of Russia and displays a large face up size. Alexandrite is very scarce variety of chrysoberyl differing in that it not only contains iron and titanium, but also chromium as a major impurity--and it is this very element which accounts for the spectacular color change. Green or bluish-green in daylight, alexandrite turns a soft shade of red, purplish-red in incandescent light. Weighing approximately 4.22 carats and measuring 13.0 x 7.0 x 5.4mm

Auction archive: Lot number 1172
Auction:
Datum:
10 Dec 2012
Auction house:
Bonhams London
Los Angeles 7601 W. Sunset Boulevard Los Angeles CA 90046 Tel: +1 323 850 7500 Fax : +1 323 850 6090 info.us@bonhams.com
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