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Alexandrite

Tsarstone collectors guide

Certified Fine Natural Alexandrite 4.16cts.

Dark very slightly bluish green in daylight, and medium dark red-purple under incandescent light, the color change is strong and attractive. The cut, polish, proportions and clarity are excellent.

Certified Fine Natural Alexandrite 4.16cts.
Natural Alexandrite Oval 4.16 cts Natural Alexandrite Oval 4.16 cts

Grade Score 7 / 10

Color
Good (3/5)
Cut
Fair (2/5)
Carat
Large (4/5)
Clarity
Exceptional (5/5)
Rarity
Extremely rare (5/5)

Price information

Availability information

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: Cool daylight
Color description: vslbG*7/2 (dark very slightly bluish green)
Phenomena: Change of color (Alexandrite effect) Pleochroism Strong
Color phenomena: RP/PR 6/3 (medium dark red-purple)
Clarity
Clarity type: Eye clean (Type I)
Transparency: Transparent
Cut
Shape: Oval
Cut style: Step
Symmetry: Good
Brilliance: Fair
Polish: Exceptional
Size
Width: 7.88 mm
Length: 10.44 mm
Depth: 5.90 mm
Weight: 4.16 cts
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