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Natural Alexandrite Faceted stone

Overview Aug 1 2007, 08:35 AM

Step Cut Alexandrite Oval, 1.7 cts

Weak to moderate color change.

Price information

RRP:$ 1760.00 Web:$ 977.50 Source:Multicolour.com
cool daylight Incandescent light Step Cut Alexandrite Oval, 1.7 cts


Detail report Aug 1 2007, 08:35 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:yG*5/2 (medium yellowish green) Light source 1:cool daylight Color grade 2: yO*2/2 (very light yellowish orange [brownish])
Light source 2:Incandescent light Optical phenomena:75%-79% (Strong) Color change (Alexandrite effect) Color rating:0 (Undisclosed)

Clarity grade

Brilliance:Exceptional Transparency:Transparent Clarity grade (GIA):eye clean Clarity rating:5 (Exceptional)

Cut grade

Shape:Oval Style:Step Cut Polish:Exceptional Symmetry:Exceptional Cut rating:5 (Exceptional)

Measurement

Length:7.11 mm Width:6.4 mm Depth:4.56 mm Weight:1.7 cts


 
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