3.77 ct Tanzanite ALGT certified

Maker

ALGT

Material

Tanzanite

Size

10.07 x 7.90 x 6.41 mm

Weight

3.77 ct

Condition

New

Price

1,995.00


3.77 carat ALGT certified  bluish violet  cushion cut natural Tanzanite 
Species ................................................................................ Natural Zoisite
Variety ............................................................................................ Tanzanite
DESCRIPTION
Shape & Cutting Style ................................................ Oval, Mixed Cut
Measurements .............................................. 10.07 x 7.90 x 6.41 mm
Carat Weight ............................................................................. 3.77 Carat
Color ................................................................ Vivid/Deep Violetish Blue
Transparency ......................................................................... Transparent
ADDITIONAL GRADING CHARACTERISTICS
Color Quality Grade ................................................. Fine Color Quality
Suggested Origin ......................................................................... Tanzania

MAIN PROPERTIES OF TANZANITE
Chemical Composition ......................... Ca2Al3(SiO4)(Si2O7)(O,OH)
Crystal System ............................................................... Orthorhombic
Mohs Hardness ......................................................................... 6.5 - 7.0
Specific Gravity ...................................................... 3.33 - 3.36 g/cm3
Optical Character ....................................................................... Biaxial+
Refractive Index ............................................................. 1.690 - 1.702
Birefringence ................................................................... 0.006 - 0.012

You might also like:
tanzanite-aaaa-5-05-ct-gia-certified-oval-zoisite
1-ct-natural-rond-brazilian-emerald-algt-antwerp-certified
4-10-ct-gia-certified-vivid-green-tsavorite-garnet-video
0-70-ct-vivid-purplish-pink-scorundum-apphire-no-heat
gold-yellow-citrine-type
3-8-ct-gia-certified-natural-ceylon-sapphire