The value 3.52 is associated with which property of gem-quality diamonds?

The value 3.52 is associated with which property of gem-quality diamonds?

• A. Refractive index
• B. Mohs hardness
• C. Dispersion
• D. Specific gravity

Answer: (D)

Specific gravity is the density of a material relative to water. Diamond has a specific gravity of about 3.52, so it’s about 3.5 times as dense as water. This value is distinct from other gem properties: refractive index is around 2.42, dispersion is about 0.044, and Mohs hardness is 10. Since the number 3.52 matches diamond’s specific gravity, it identifies that property.

Specific gravity is the density of a material relative to water. Diamond has a specific gravity of about 3.52, so it’s about 3.5 times as dense as water. This value is distinct from other gem properties: refractive index is around 2.42, dispersion is about 0.044, and Mohs hardness is 10. Since the number 3.52 matches diamond’s specific gravity, it identifies that property.