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Alexandrite

Tsarstone collectors guide

Certified Natural Alexandrite Oval 4.81cts.

The stone is well cut with good transparency and a strong and attractive color change offering excellent value for an alexandrite this size.

Certified Natural Alexandrite Oval 4.81cts.
Natural Alexandrite Oval 4.81 cts Natural Alexandrite Oval 4.81 cts

Grade Score 7 / 10

Color
Very good (4/5)
Cut
Fair (2/5)
Carat
Large (4/5)
Clarity
Good (3/5)
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: 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
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