Beautiful ladies opal and diamond ring

retail value $600 one ladies opal and diamond ring.The ring contains 5 pair shaped opals , four weigh aproximately 0.44 cts and 1 approximately 0.20cts . they all have excellent play of color in red,green and blue. In addition there are 6 diamonds (1 missing) they weigh approximately 0.01 cts . the mounting is 18kt yellow gold and weighs 4.0dwt