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Alexandrite

Tsarstone collectors guide

Certified Moderate Change Alexandrite 3.20cts

A bright, well, cut and especially clean stone with a moderate color change. An AIGS mini report is included with the purchase of this stone.

Certified Moderate Change Alexandrite 3.20cts
Natural Alexandrite Oval 3.19 cts Natural Alexandrite Oval 3.19 cts

Grade Score 8 / 10

Color
Good (3/5)
Cut
Exceptional (5/5)
Carat
Large (4/5)
Clarity
Exceptional (5/5)
Rarity
Extremely rare (5/5)

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: styG*7/4 (dark strongly yellowish green)
Phenomena: Change of color (Alexandrite effect) Pleochroism Strong
Color phenomena: yO 3/3 (light yellowish orange [brownish] )
Clarity
Clarity type: Eye clean (Type I)
Transparency: Transparent
Cut
Shape: Oval
Cut style: Step
Symmetry: Exceptional
Brilliance: Exceptional
Polish: Exceptional
Size
Width: 7.22 mm
Length: 9.74 mm
Depth: 5.36 mm
Weight: 3.19 cts
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Bibliographic details
Page title Natural Alexandrite Oval 3.19 cts
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:07 UTC
Date accessed 15 November 2025 15:59 UTC
Permanent link http://www.alexandrite.net/viewpage.html?id=ALX-001-00052
AMA style
David Weinberg. "Natural Alexandrite Oval 3.19 cts". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:07 UTC. Available at: http://www.alexandrite.net/viewpage.html?id=ALX-001-00052. Accessed November 15, 2025.
APA style
"Natural Alexandrite Oval 3.19 cts". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 15:59, November 15, 2025, from http://www.alexandrite.net/viewpage.html?id=ALX-001-00052.
Bluebook style
"Natural Alexandrite Oval 3.19 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00052 (last visited November 15, 2025).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Natural Alexandrite Oval 3.19 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00052 (Extremely rare Alexandrite (Chrysoberyl) Oval 3.19cts from Tanzania (Tunduru)) (as of Nov. 15, 2025, 15:59 GMT).
CBE/CSE style
David Weinberg. "Natural Alexandrite Oval 3.19 cts". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:07 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:07 UTC [cited 2025 Nov 15]. Available from: http://www.alexandrite.net/viewpage.html?id=ALX-001-00052.
Chicago style
David Weinberg, "Natural Alexandrite Oval 3.19 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00052, (accessed November 15, 2025).
MLA style
"Natural Alexandrite Oval 3.19 cts". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:07 UTC. 15 Nov 2025 http://www.alexandrite.net/viewpage.html?id=ALX-001-00052
MHRA style
David Weinberg, "Natural Alexandrite Oval 3.19 cts", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:07 UTC, http://www.alexandrite.net/viewpage.html?id=ALX-001-00052 [accessed 15 November 2025].
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