PRICE IS FIRM this is Peruvian opal mixed with bronze 4.5 carats weighs approx 1 gram measures approx 9/16" x just over 3/8" rounded cabochon measuring abt 1/8" measured from the widest point This is a STUNNING piece created by the Colbaugh family in Kingman Arizona. They not only own the Kingman Arizona turquoise mine, but are THE CREATORS of Mohave purple turquoise!! (I have some of that listed as well) lots of opal available along with all sorts of other gems, stones, crystals, minerals, fossils, rocks etc with more added ALL the time Please check out other categories for similar items too