The rise and fall of sea levels caused by the combined effects of
the gravitational forces exerted by the Moon and the Sun and the rotation of Earth are tides.
Australian opal sourced in Koroit, housed in 100% sterling silver
* Human emotions may also mimic a similar cycle
** Sorry! This opal is one-of- a-kind and cannot be replicated. We do however have many more irreplaceable opals with their own unique aesthetics. Email if you would like to choose your own opal to be made to size