JuneAlexandrite Week 10 June Alexandrite Alexandrite is an extremely rare yet relatively modern gemstone Major alexandrite deposits were first discovered in 1830 in Russias Ural Mountains ID: 1021114
Download Presentation The PPT/PDF document "Holiday Jewel Box Class Week #10 (Lesson..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. Holiday Jewel Box ClassWeek #10 (Lesson 13)June/Alexandrite
2. Week #10 – June/AlexandriteAlexandrite is an extremely rare, yet relatively modern gemstone.Major alexandrite deposits were first discovered in 1830 in Russia’s Ural Mountains. The gem was named after the young Alexander II (1818–1881), heir apparent to the throne.
3. Week #10 – June/AlexandriteThe deposits in the Ural Mountains were depleted and the gem was thought to be going extinct.Tiffany Company popularized the gem in the 20th Century. George Kunz, Tiffany’s master gem buyer, fell in love with the gem and traveled to Russia in search of it. No one knows exactly how much of the gemstone he bought, but Tiffany had reserves so large, that it cornered the market on the stone for decades. For much of the 20th Century, there were no new discoveries of the mineral, and it became very rare.New deposits were found in Brazil in 1987 and along the border of Tanzania and Mozambique in 1993.
4. Week #10 – June/AlexandriteAlexandrite, with its chameleon-like qualities, is a rare variety of the mineral chrysoberyl. Due to alexandrite’s complex way of absorbing color, the stone can be a lovely teal green in daylight or fluorescent light, changing to brownish or purplish red in the incandescent light from a lamp or candle flame.
5. Week #10 – June/AlexandriteAlexandrite, with its chameleon-like qualities, is a rare variety of the mineral chrysoberyl. Due to alexandrite’s complex way of absorbing color, the stone can be a lovely teal green in daylight or fluorescent light, changing to brownish or purplish red in the incandescent light from a lamp or candle flame.Alexandrite’s dramatic color change is sometimes described as “emerald by day, ruby by night.” The unique color change habit of Alexandrite is caused by slight impurities of the element chromium.
6. Week #10 – June/Alexandrite The 17-carat Whitney Alexandrite is one of the world’s most famous Alexandrite gems & is part of our National Gem Collection (Smithsonian Institution).A 2009 gift from Smithsonian benefactor Coralyn Whitney, the beautiful modified cushion cut gemstone exhibits a raspberry color under incandescent light and a teal color in daylight. The Whitney Alexandrite is particularly rare because specimens of larger than 2 carats are considered rare and those weighing more than 5 carat are extremely rare. A cut and polished alexandrite of 17.08 carats is virtually unheard of.
7. Week #10 – June/Alexandrite The 17-carat Whitney Alexandrite is one of the world’s most famous Alexandrite gems & is part of our National Gem Collection (Smithsonian Institution).A 2009 gift from Smithsonian benefactor Coralyn Whitney, the beautiful modified cushion cut gemstone exhibits a raspberry color under incandescent light and a teal color in daylight. The Whitney Alexandrite is particularly rare because specimens of larger than 2 carats are considered rare and those weighing more than 5 carat are extremely rare. A cut and polished alexandrite of 17.08 carats is virtually unheard of.A 43-carat alexandrite in the collection of the British Museum.
8. Week #10 – June/Alexandrite The French cut diamond is generally reported to be one of the oldest diamond cuts and to have appeared around the early 1400’s.It regained popularity in the 1800s and then again in the 1920’s during the Art Deco period.It is a simple cut with a total of 9 crown facets.
9. Week #10 – June/Alexandrite
10. Week #10 – June/Alexandrite
11. Week #10 – June/Alexandrite
12. Week #10 – June/Alexandrite
13. Week #10 – June/Alexandrite
14. Week #10 – June/Alexandrite
15. Week #10 – June/Alexandrite
16. Week #10 – June/Alexandrite
17. Week #10 – June/Alexandrite
18. Week #10 – June/Alexandrite