Diamond and Sard Optical Properties

Diamond

Sard

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Optical Properties

Luster

Adamantine

Waxy

Pleochroism

None

Dispersion

0.040.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to opaque

Translucent

Refractive Index

2.417-2.4191.535-1.539

1 3.25

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Optic Character

Crystal System

cubic

Birefringence

-99990.008-0.010

0 0.296

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Clarity

Transparent

Translucent

Diamond and Sard Optic Character

Diamond and Sard optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Diamond and Sard Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Diamond and Sard optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Diamond and Sard Transparency

Similar to their colors, Diamond and Sard transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Diamond is Transparent, Translucent and Transparent to opaque while Diamond is Transparent, Translucent and Transparent to opaque in appearance.