Bright green in daylight and grayish purple under incandescent light, the color change is excellent. The stone is eye clean and the cutting and proportions are good. A complimentary AIGS gemstone mini certificate is included with the purchase of this gemstone.
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: | Pleochroism Change of color (Alexandrite effect) Strong |
Color phenomena: | RO/OR*4/2 (medium light red-orange or orange red [pink]) |
Clarity | |
Clarity type: | Eye clean (Type I) |
Transparency: | Transparent |
Cut | |
Shape: | Oval |
Cut style: | Step |
Symmetry: | Exceptional |
Brilliance: | Exceptional |
Polish: | Exceptional |
Size | |
Width: | 6.38 mm |
Length: | 8.79 mm |
Depth: | 3.86 mm |
Weight: | 1.85 cts |