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Alexandrite

Tsarstone collectors guide

Bright Alexandrite Oval 5.16cts Super Value!

The stone reveals a moderate to significant color change from a vibrant greenish yellow in fluorescent light to a grey-pink color in incandescent light. The stone is very bright and well cut for an alexandrite.

Bright Alexandrite Oval 5.16cts Super Value!
Natural Alexandrite Oval 5.16 cts Natural Alexandrite Oval 5.16 cts

Grade Score 8 / 10

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

Price information

Availability information

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*6/2 (medium dark strongly yellowish green)
Phenomena: Pleochroism Change of color (Alexandrite effect) Moderate
Clarity
Clarity type: Eye clean (Type I)
Transparency: Transparent
Cut
Shape: Oval
Cut style: Step
Symmetry: Good
Brilliance: Exceptional
Polish: Exceptional
Size
Width: 9.30 mm
Length: 12.00 mm
Weight: 5.16 cts
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Bibliographic details
Page title Natural Alexandrite Oval 5.16 cts
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:05 UTC
Date accessed 13 March 2026 04:20 UTC
Permanent link http://www.alexandrite.net/viewpage.html?id=ALX-001-00003
AMA style
David Weinberg. "Natural Alexandrite Oval 5.16 cts". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:05 UTC. Available at: http://www.alexandrite.net/viewpage.html?id=ALX-001-00003. Accessed March 13, 2026.
APA style
"Natural Alexandrite Oval 5.16 cts". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 04:20, March 13, 2026, from http://www.alexandrite.net/viewpage.html?id=ALX-001-00003.
Bluebook style
"Natural Alexandrite Oval 5.16 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00003 (last visited March 13, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Natural Alexandrite Oval 5.16 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00003 (Extremely rare Alexandrite (Chrysoberyl) Oval 5.16cts from Tanzania (Tunduru)) (as of Mar. 13, 2026, 04:20 GMT).
CBE/CSE style
David Weinberg. "Natural Alexandrite Oval 5.16 cts". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:05 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:05 UTC [cited 2026 Mar 13]. Available from: http://www.alexandrite.net/viewpage.html?id=ALX-001-00003.
Chicago style
David Weinberg, "Natural Alexandrite Oval 5.16 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00003, (accessed March 13, 2026).
MLA style
"Natural Alexandrite Oval 5.16 cts". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:05 UTC. 13 Mar 2026 http://www.alexandrite.net/viewpage.html?id=ALX-001-00003
MHRA style
David Weinberg, "Natural Alexandrite Oval 5.16 cts", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:05 UTC, http://www.alexandrite.net/viewpage.html?id=ALX-001-00003 [accessed 13 March 2026].
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