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Alexandrite

Tsarstone collectors guide

Quality Natural Alexandrite Cushion 2.70cts.

In daylight the color is dark very strongly bluish green and under incandescent light medium dark very slightly grayish red-purple. The color change is moderately strong the cutting is good and the stone is exceptionally clean.

Quality Natural Alexandrite Cushion 2.70cts.
Natural Alexandrite Cushion 2.7 cts Natural Alexandrite Cushion 2.7 cts

Grade Score 7 / 10

Color
Fair (2/5)
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: Deobhog area, Raipur, Chhattisgarh, India
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: vstbG 5/3vstbG 5/3 (medium very strongly bluish green)
Phenomena: Change of color (Alexandrite effect) Pleochroism Strong
Color phenomena: rP*5/2 (medium reddish purple)
Clarity
Clarity type: Eye clean (Type I)
Transparency: Transparent
Cut
Shape: Cushion
Cut style: Step
Symmetry: Good
Brilliance: Exceptional
Polish: Exceptional
Size
Width: 6.38 mm
Length: 8.81 mm
Depth: 5.29 mm
Weight: 2.70 cts
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