The stone is well cut with good transparency and a strong and attractive color change offering excellent value for an alexandrite this size.
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: | yG*5/2 (medium yellowish green) |
Phenomena: | Change of color (Alexandrite effect) Pleochroism Strong |
Color phenomena: | RO/OR*3/3 (light red-orange or orange red [pink]) |
Clarity | |
Clarity type: | Moderately included (Type I) |
Transparency: | Transparent |
Cut | |
Shape: | Oval |
Cut style: | Step |
Symmetry: | Good |
Brilliance: | Good |
Polish: | Exceptional |
Size | |
Width: | 8.40 mm |
Length: | 12.20 mm |
Depth: | 5.50 mm |
Weight: | 4.81 cts |
Page title | Natural Alexandrite Oval 4.81 cts |
Author | David Weinberg |
Website title | Alexandrite Tsarstone Collectors Guide |
Date published | 03 July 2010 05:06 UTC |
Date accessed | 11 November 2024 13:23 UTC |
Permanent link | http://www.alexandrite.net/viewpage.html?id=ALX-001-00007 |