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.
Grade Score 7 / 10
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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