The glow of Northern Lights with its amazing flashes of colors within a semi translucent opaque background. Black Opals are extremely rare and beautiful and each gem is unique with its own distinctive flashes of vibrant colors. Its major source is Australia.
A = Semi Translucent to Opaque, Dark Gray to Black Background, Good to Medium play of colors, Good Cut, Good Polish. Color flash - Blues or Greens.
AA = Semi Translucent to Opaque, Dark Gray to Black Background, Good to Medium strong play of colors, Good Cut, Good Polish. Couple Color flashes - Blues, Greens, Reds.
AAA = Semi Translucent to Opaque, Dark Gray to Black Background, Vibrant play of colors, Good Cut, Good Polish. Vivid & Vibrant Color flashes - Blues, Greens, Reds and more.
Moh's Hardness = 5 - 6.5.
AA = Semi Translucent to Opaque, Dark Gray to Black Background, Good to Medium strong play of colors, Good Cut, Good Polish. Couple Color flashes - Blues, Greens, Reds.
AAA = Semi Translucent to Opaque, Dark Gray to Black Background, Vibrant play of colors, Good Cut, Good Polish. Vivid & Vibrant Color flashes - Blues, Greens, Reds and more.
Moh's Hardness = 5 - 6.5.
