AVENA London Blue

How does Avena London Blue compare to Natural London Blue Topaz?

  • Avena London Blue has medium brilliance compared to Natural London Blue Topaz which has medium brilliance.
  • Avena London Blue has low fire compared to Natural London Blue Topaz has low fire.

    Name

    AVENA London Blue

    Natural London Blue Topaz

    Material

    AVENA London Blue

    Topaz

    Refractive Index

    1.65-1.7

    1.606-1.644

    Brilliance

    Medium

    Medium

    Dispersion

    0.015

    0.014

    Fire

    Low

    Low

    Hardness

    7

    8

    Specific Gravity

    3.5-4

    3.49 - 3.57