For such a hard and durable material chrysoberyl is relatively obscure and the low prices don’t seem to reflect its utility as a gemstone. Only corundum and diamond are harder.
Identification | |
Type: | Natural |
Species: | Chrysoberyl |
Variety: | Chrysoberyl |
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/GY 4/3 (medium light yellow-green) |
Phenomena: | Pleochroism Strong (65%-69%) |
Clarity | |
Clarity type: | Slightly included (Type I) |
Transparency: | Transparent |
Cut | |
Shape: | Trillion |
Cut style: | Step |
Symmetry: | Exceptional |
Brilliance: | Exceptional |
Polish: | Exceptional |
Size | |
Width: | 8.30 mm |
Length: | 9.30 mm |
Weight: | 2.84 cts |