Medium green in daylight and medium light orangy red under incandescent light, the color change is strong and attractive. Although the clarity is not that good, alexandrites this large are extremely rare. An antique setting might be the best way to set this stone.
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: | Cool daylight |
Color description: | G*5/2 (medium green) |
Phenomena: | Change of color (Alexandrite effect) Pleochroism Strong |
Color phenomena: | oR 4/3 (medium light orangy red) |
Clarity | |
Clarity type: | Severely included (Type I) |
Transparency: | Transparent |
Cut | |
Shape: | Oval |
Cut style: | Step |
Symmetry: | Good |
Brilliance: | Poor |
Polish: | Exceptional |
Size | |
Width: | 10.60 mm |
Length: | 13.70 mm |
Depth: | 8.20 mm |
Weight: | 8.94 cts |