-40%
.63 Carats Natural Green Colombian Emerald Faceted Gemstone Pear EMD50
$ 54.25
- Description
- Size Guide
Description
Primary Stone / EmeraldGemstone: Emerald
Gemstone Family: Beryl
Gemstone Count: 1
Carat Weight: 0.63
Gemstone Shape: Pear
Primary Color: green
Color: Green
Treatment: Oiling
Country of Origin: Colombia
Composition: Natural
Dimensions: 7.75mm x 4.89mm x 2.97mm
Emerald Gemological Properties:
Species: Emerald - beryl
Chemical Formula: Al2Be3Si6O18 - Aluminum beryllium silicate
Crystal Structure: Hexagonal; hexagonal prisms
Color: Emerald green to green to slightly bluish or yellowish-green
Hardness: 7.5 to 8 on the Mohs scale
Refractive Index: 1.565 to 1.602
Density: 2.67 to 2.78
Cleavage: Indistinct
Transparency: Transparent to opaque
Double Refraction or Birefringence: -0.006
Luster: Vitreous
Fluorescence: Usually none
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