4ct (11.6x8.9x4.4mm) Boulder Opal

Opal Type: Boulder Opal 

Shape: Oval 

Opal Weight (ct): 4ct

Dimensions (L x W x H): 11.62 x 8.88 x 4.38mm

Colour Intensity: Bright

Dominant Colours: Green, Blue

Pattern: Matrix Boulder Pattern (veins/ rivers of opal amongst ironstone)

Origin: Winton, Queensland Australia