They measure about -7X9MMStone - OpalShape - OvalQuality -AAAOrigin -EthiopiaAverage Stone Weight - 1ct
They measure about -5x7MMStone - OpalShape - OvalQuality -AAAOrigin -EthiopiaAverage Stone Weight -0.50cts
They measure about -4x6MMStone - OpalShape - OvalQuality -AAAOrigin -EthiopiaAverage Stone Weight - 0.30cts