Step Cut Alexandrite Cushion, 4.12 cts
Yellowish green in daylight and grayish violet under incandescent light, the color change is strong. The stone is bright and quite clean and the cut and polish are good.
Price information
RRP:$ 16639.00
Web:$ 9244.00
Source:Multicolour.com
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Enhancement
Variety of work:Faceted stone
Enhancement:A (Not currently known to be enhanced)
Treatment:N/A
Classification
Identification:Natural
Species:Chrysoberyl
Variety:Alexandrite
Origin :Tanzania, Tunduru
Specific gravity:3.73
Hardnes:8.50
Refractive index:1.741 - 1.760
Rarity rating:10 (Extremely rare)
Color grade
Color grade 1:vstbG 5/3 (medium very strongly bluish green)
Light source 1:cool daylight
Color grade 2:
PR/RP 5/3 (medium red-purple [pink])
Light source 2:Incandescent light
Optical phenomena:75%-79% (Strong) Color change (Alexandrite effect)
Color rating:0 (Undisclosed)
Clarity grade
Brilliance:Very good
Transparency:Transparent
Clarity grade (GIA):slightly included
Clarity rating:4 (Very good)
Cut grade
Shape:Cushion
Style:Step Cut
Polish:Exceptional
Symmetry:Good
Cut rating:3 (Good)
Measurement
Length:9.18 mm
Width:8.87 mm
Depth:5.78 mm
Weight:4.12 cts
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