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Alexandrite

Tsarstone collectors guide

Certified Strong Color Change Alexandrite Ov.

Strong color change, quality cutting, and good clarity at a very reasonable price.

Certified Strong Color Change Alexandrite Ov.
Natural Alexandrite Oval 1.63 cts Natural Alexandrite Oval 1.63 cts

Grade Score 8 / 10

Color
Good (3/5)
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 4/2 (medium light green)
Phenomena: Pleochroism Change of color (Alexandrite effect) Strong
Color phenomena: rO 2/3 (very light reddish orange)
Clarity
Clarity type: Eye clean (Type I)
Transparency: Transparent
Cut
Shape: Oval
Cut style: Step
Symmetry: Exceptional
Brilliance: Exceptional
Polish: Exceptional
Size
Width: 5.77 mm
Length: 7.27 mm
Depth: 4.77 mm
Weight: 1.63 cts
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Bibliographic details
Page title Natural Alexandrite Oval 1.63 cts
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:08 UTC
Date accessed 08 November 2025 02:38 UTC
Permanent link http://www.alexandrite.net/viewpage.html?id=ALX-001-00090
AMA style
David Weinberg. "Natural Alexandrite Oval 1.63 cts". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:08 UTC. Available at: http://www.alexandrite.net/viewpage.html?id=ALX-001-00090. Accessed November 08, 2025.
APA style
"Natural Alexandrite Oval 1.63 cts". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 02:38, November 08, 2025, from http://www.alexandrite.net/viewpage.html?id=ALX-001-00090.
Bluebook style
"Natural Alexandrite Oval 1.63 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00090 (last visited November 08, 2025).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Natural Alexandrite Oval 1.63 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00090 (Rare Alexandrite (Chrysoberyl) Oval 1.63cts from Tanzania (Tunduru)) (as of Nov. 08, 2025, 02:38 GMT).
CBE/CSE style
David Weinberg. "Natural Alexandrite Oval 1.63 cts". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:08 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:08 UTC [cited 2025 Nov 08]. Available from: http://www.alexandrite.net/viewpage.html?id=ALX-001-00090.
Chicago style
David Weinberg, "Natural Alexandrite Oval 1.63 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00090, (accessed November 08, 2025).
MLA style
"Natural Alexandrite Oval 1.63 cts". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:08 UTC. 08 Nov 2025 http://www.alexandrite.net/viewpage.html?id=ALX-001-00090
MHRA style
David Weinberg, "Natural Alexandrite Oval 1.63 cts", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:08 UTC, http://www.alexandrite.net/viewpage.html?id=ALX-001-00090 [accessed 08 November 2025].
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