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Alexandrite

Tsarstone collectors guide

Certified Natural Alexandrite Oval 1.85cts.

Bright green in daylight and grayish purple under incandescent light, the color change is excellent. The stone is eye clean and the cutting and proportions are good. A complimentary AIGS gemstone mini certificate is included with the purchase of this gemstone.

Certified Natural Alexandrite Oval 1.85cts.
Natural Alexandrite Oval 1.85 cts Natural Alexandrite Oval 1.85 cts

Grade Score 8 / 10

Color
Very good (4/5)
Cut
Exceptional (5/5)
Carat
Large (4/5)
Clarity
Exceptional (5/5)
Rarity
Rare (4/5)

Price information

Availability information

  • Offered through Multicolour.com
  • Usually ships within 24 hours
  • Source: Multicolour.com
  • Multicolour Gems Co., Ltd
Detail identification and grading report
Identification
Type: Natural
Species: Chrysoberyl
Variety: Alexandrite
Origin: Tunduru, Ruvuma, Ruvuma Region, Tanzania
Hardness: 8.5
Density: 3.75
RI-1: 1.741
RI-2: 1.76
Enhancements
Variety of work: Faceted
Designation: A (Not currently known to be enhanced)
Color
Color light source: Cool daylight
Color description: G*5/2 (medium green)
Phenomena: Pleochroism Change of color (Alexandrite effect) Strong
Color phenomena: RO/OR*4/2 (medium light red-orange or orange red [pink])
Clarity
Clarity type: Eye clean (Type I)
Transparency: Transparent
Cut
Shape: Oval
Cut style: Step
Symmetry: Exceptional
Brilliance: Exceptional
Polish: Exceptional
Size
Width: 6.38 mm
Length: 8.79 mm
Depth: 3.86 mm
Weight: 1.85 cts
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Bibliographic details
Page title Natural Alexandrite Oval 1.85 cts
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:07 UTC
Date accessed 13 December 2024 16:34 UTC
Permanent link http://www.alexandrite.net/viewpage.html?id=ALX-001-00055
AMA style
David Weinberg. "Natural Alexandrite Oval 1.85 cts". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:07 UTC. Available at: http://www.alexandrite.net/viewpage.html?id=ALX-001-00055. Accessed December 13, 2024.
APA style
"Natural Alexandrite Oval 1.85 cts". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 16:34, December 13, 2024, from http://www.alexandrite.net/viewpage.html?id=ALX-001-00055.
Bluebook style
"Natural Alexandrite Oval 1.85 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00055 (last visited December 13, 2024).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Natural Alexandrite Oval 1.85 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00055 (Rare Alexandrite (Chrysoberyl) Oval 1.85cts from Tanzania (Tunduru)) (as of Dec. 13, 2024, 16:34 GMT).
CBE/CSE style
David Weinberg. "Natural Alexandrite Oval 1.85 cts". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:07 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:07 UTC [cited 2024 Dec 13]. Available from: http://www.alexandrite.net/viewpage.html?id=ALX-001-00055.
Chicago style
David Weinberg, "Natural Alexandrite Oval 1.85 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00055, (accessed December 13, 2024).
MLA style
"Natural Alexandrite Oval 1.85 cts". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:07 UTC. 13 Dec 2024 http://www.alexandrite.net/viewpage.html?id=ALX-001-00055
MHRA style
David Weinberg, "Natural Alexandrite Oval 1.85 cts", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:07 UTC, http://www.alexandrite.net/viewpage.html?id=ALX-001-00055 [accessed 13 December 2024].
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