Estimated Value $100-$135
- 3.72ct, 17.6x8.2xx4.0mm from Andamooka, Australia;
- Brightness: 3 of 5.
- Body tone: N4 - darkened with sugar and acid treatment.
This is treated matrix opal from Andamooka, Australia. The precious opal flakes are suspended in limestone and when it is mined, it has a creamy body tone. To bright out the opal sparkle and color, Andamooka matrix opal is treated to color the limestone dark. It is a great budget friendly opal.