Step Cut Alexandrite Cushion, 21.23 cts
Dark blue green in daylight and purple- red under incandescent light, the color change is strong and attractive. Although the clarity is not that good, alexandrites this large are extremely rare. An antique setting might be the best way to set this stone. The cutting and proportions are quite good.
Price information
RRP:$ 28688.00
Web:$ 15938.00
Source:Multicolour.com
|
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:GB/BG*6/2 (medium dark green blue or blue 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:Poor
Transparency:Transparent
Clarity grade (GIA):moderately to Severely included
Clarity rating:2 (Fair)
Cut grade
Shape:Cushion
Style:Step Cut
Polish:Good
Symmetry:Fair
Cut rating:2 (Fair)
Measurement
Length:16.02 mm
Width:11.9 mm
Depth:11.33 mm
Weight:21.23 cts
|
