This is a cushion-facet, light pastel-blue, natural Brazilian Aquamarine gemstone. It weighs 5.25cts and measures 11.5x8.5mm.
Below are the technical details:
Size: | 11.5x8.5 mm | |
Shape: | Cushion-Facet | |
Colour: | Pastel-Blue | |
Clarity: | Clean | |
Lustre: | Supreme | |
Origin: | Brazil | |
Hardness: | 7.5 - 8 | |
Specific Gravity: | 2.71 | |
Refractive Index: | 1.59 | |
Chemical Composition: | Be3Al2Si6O18, Beryllium aluminum silicate | |
Crystal Structure: | Hexagonal |