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Tsarstone collectors guide

Certified Fine Natural Alexandrite .2.60cts.

Bluish green in daylight and purplish red under incandescent light, the color change is exceptional. Although there are some silky areas, the stone is quite clean and transparent. Slightly silky stones like this one often show a superior color change. The cutting, proportions and finish are good. Some minor windowing is observable but could easily be removed with a repolish. However, with a weight over 2.50cts., the stone may be worth more as it is and we’ve decided to leave it as it is for now. Alexandrites this large and nice are always hard to find and we buy them whenever we can get them at the right price.

Certified Fine Natural Alexandrite .2.60cts.
Natural Alexandrite Oval 2.6 cts Natural Alexandrite Oval 2.6 cts

Grade Score 8 / 10

Very good (4/5)
Good (3/5)
Large (4/5)
Very good (4/5)
Extremely rare (5/5)

Price information

Availability information

Detail identification and grading report
Type: Natural
Species: Chrysoberyl
Variety: Alexandrite
Origin: Deobhog area, Raipur, Chhattisgarh, India
Hardness: 8.5
Density: 3.75
RI-1: 1.741
RI-2: 1.76
Variety of work: Faceted
Designation: A (Not currently known to be enhanced)
Color light source: Cool daylight
Color description: vstbG 7/4 (dark very strongly bluish green)
Phenomena: Change of color (Alexandrite effect) Pleochroism Strong
Color phenomena: rP 5/3 (medium reddish purple)
Clarity type: Slightly included (Type I)
Transparency: Transparent
Shape: Oval
Cut style: Step
Symmetry: Good
Brilliance: Good
Polish: Exceptional
Width: 6.43 mm
Length: 9.69 mm
Depth: 4.92 mm
Weight: 2.60 cts
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Bibliographic details
Page title Natural Alexandrite Oval 2.6 cts
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 05:06 UTC
Date accessed 13 July 2024 14:43 UTC
Permanent link
AMA style
David Weinberg. "Natural Alexandrite Oval 2.6 cts". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 05:06 UTC. Available at: Accessed July 13, 2024.
APA style
"Natural Alexandrite Oval 2.6 cts". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 14:43, July 13, 2024, from
Bluebook style
"Natural Alexandrite Oval 2.6 cts", (last visited July 13, 2024).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Natural Alexandrite Oval 2.6 cts", (Extremely rare Alexandrite (Chrysoberyl) Oval 2.6cts from India (Deobhog area)) (as of Jul. 13, 2024, 14:43 GMT).
CBE/CSE style
David Weinberg. "Natural Alexandrite Oval 2.6 cts". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 05:06 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 05:06 UTC [cited 2024 Jul 13]. Available from:
Chicago style
David Weinberg, "Natural Alexandrite Oval 2.6 cts",, (accessed July 13, 2024).
MLA style
"Natural Alexandrite Oval 2.6 cts". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 05:06 UTC. 13 Jul 2024
MHRA style
David Weinberg, "Natural Alexandrite Oval 2.6 cts", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 05:06 UTC, [accessed 13 July 2024].
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