This is an octagon-facet, light lemon-yellow, natural African Citrine gemstone. It weighs 5.90cts and measures 16x9.5mm.
Below are the technical details:
Size:
16x9.5 mm
Shape:
Octagon-Facet
Colour:
Light Lemon-Yellow
Clarity:
Clean
Lustre:
Excellent
Origin:
Africa
Hardness:
7
Specific Gravity:
2.65 - 2.91
Refractive Index:
1.544 - 1.553
Chemical Composition:
SiO2, Silicon Dioxide
Crystal Structure:
Trigonal