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Alexandrite

Tsarstone collectors guide

Sharp Chrysoberyl Cats Eye 5.90cts.

A sharp and centered eye overlies a brownish olive body color. Nice cat's eyes over 2cts. are always hard to find.

Sharp Chrysoberyl Cats Eye 5.90cts.

Grade Score 7 / 10

Color
Good (3/5)
Cut
Good (3/5)
Carat
Large (4/5)
Clarity
Inapplicable (N/A)
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: Cymophane
Origin: Tunduru, Ruvuma, Ruvuma Region, Tanzania
Hardness: 8.5
Density: 3.75
RI-1: 1.741
RI-2: 1.76
Enhancements
Variety of work: Traditional (Cabochon)
Designation: A (Not currently known to be enhanced)
Color
Color light source: Cool daylight
Color description: gY*4/2 (medium light greenish yellow)
Phenomena: Cat's eye (Chatoyancy) Chatoyancy Strong (60%-64%)
Clarity
Transparency: Translucent
Cut
Shape: Oval
Cut style: Polished
Symmetry: Good
Polish: Fair
Size
Width: 8.30 mm
Length: 11.20 mm
Depth: 6.40 mm
Weight: 5.90 cts
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Bibliographic details
Page title Natural Cymophane Oval 5.9 cts
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:09 UTC
Date accessed 23 January 2025 19:49 UTC
Permanent link http://www.alexandrite.net/viewpage.html?id=ALX-001-00046
AMA style
David Weinberg. "Natural Cymophane Oval 5.9 cts". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:09 UTC. Available at: http://www.alexandrite.net/viewpage.html?id=ALX-001-00046. Accessed January 23, 2025.
APA style
"Natural Cymophane Oval 5.9 cts". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 19:49, January 23, 2025, from http://www.alexandrite.net/viewpage.html?id=ALX-001-00046.
Bluebook style
"Natural Cymophane Oval 5.9 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00046 (last visited January 23, 2025).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Natural Cymophane Oval 5.9 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00046 (Rare Cymophane (Chrysoberyl) Oval 5.9cts from Tanzania (Tunduru)) (as of Jan. 23, 2025, 19:49 GMT).
CBE/CSE style
David Weinberg. "Natural Cymophane Oval 5.9 cts". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:09 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:09 UTC [cited 2025 Jan 23]. Available from: http://www.alexandrite.net/viewpage.html?id=ALX-001-00046.
Chicago style
David Weinberg, "Natural Cymophane Oval 5.9 cts", http://www.alexandrite.net/viewpage.html?id=ALX-001-00046, (accessed January 23, 2025).
MLA style
"Natural Cymophane Oval 5.9 cts". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:09 UTC. 23 Jan 2025 http://www.alexandrite.net/viewpage.html?id=ALX-001-00046
MHRA style
David Weinberg, "Natural Cymophane Oval 5.9 cts", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:09 UTC, http://www.alexandrite.net/viewpage.html?id=ALX-001-00046 [accessed 23 January 2025].
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