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Natural Alexandrite Faceted stone

Overview Aug 1 2007, 08:34 AM

Step Cut Alexandrite Oval, 10.2 cts

Dark greenish-brown in daylight and slightly pinkish red under incandescent light, the color change is excellent. For an alexandrite, the stone is quite clean and well cut. Alexandrites this large are very rare.

Price information

RRP:$ 73440.00 Web:$ 40800.00 Source:Multicolour.com
cool daylight Incandescent light Step Cut Alexandrite Oval, 10.2 cts


Detail report Aug 1 2007, 08:34 AM

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*8/2 (very dark very strongly bluish green) Light source 1:cool daylight Color grade 2: slp/R*6/4 (medium dark slightly purplish red)
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):eye clean Clarity rating:5 (Exceptional)

Cut grade

Shape:Oval Style:Step Cut Polish:Exceptional Symmetry:Good Cut rating:3 (Good)

Measurement

Length:15.8 mm Width:10.9 mm Depth:7.2 mm Weight:10.2 cts


 
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