Certified Strong Change Alexandrite 26.75cts
Bluish green in daylight and purple red under incandescent light, the color change is exceptionally strong and attractive. The change apparent without even changing the lights. Alexandrites this large are extremely rare and this is a special stone. Although the clarity is not that good, this is a stone with character and I would keep it if I could. An antique setting might be the best way to set this stone. The cutting and proportions are good.
Grade Score 7 / 10
Rarity
Extremely rare (5/5)
Price information
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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: |
Fluorescent |
| Color description: |
yG*5/2 (medium yellowish green) |
| Phenomena: |
Adularescence Pleochroism Strong |
| Color phenomena: |
slp/R*3/2 (light slightly purplish red [pink]) |
| Clarity |
|
| Clarity type: |
Moderately included (Type I) |
| Transparency: |
Transparent |
| Cut |
|
| Shape: |
Cushion |
| Cut style: |
Step |
| Symmetry: |
Good |
| Brilliance: |
Fair |
| Polish: |
Good |
| Size |
|
| Width: |
15.25 mm |
| Length: |
16.97 mm |
| Depth: |
10.58 mm |
| Weight: |
26.75 cts |
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