6.45 Ct bright rainbow boulder opal Type_Tiny At our Russells opal mine

At our Russells opal mine we have found that this silica solution occupies a void most probably left by decaying tree roots or branches

36 Ct oval boulder opal boasts an impressive array of colours which span the majority of its surface

A pastel rainbow boulder opal heart with a striped pattern

but because the remaining internal structures create a mesmerizing inner world that is visible through the transparent and  translucent opal

6.45 Ct bright rainbow boulder opal Type_Tiny At our Russells opal mineThis 6. 45 carat boulder opal has a rare combination of colors including orange, yellow, lime green, and turquoise. Its vibrant hue and exceptional clarity make it a unique and beautiful gemstone, sure to add magic to any jewelry piece.