Blue green boulder opal, 2.7ct

This opal has a fantastic zoning from blue to green and would fall in landscape opal category. The tone of blue and green changes depending on a light - from bright cobalt blue to deep dark purple blue.

• 2.7ct,  10.33x5.74x3.85mm from Queensland, Australia;
• Brightness: 4 of 5;
  
• Body tone: N4, Boulder opal.