Ethiopian white opal sterling silver drop pendant 925 Chain vtg native

a large bezel-set cabachon WHITE ETHIOPIAN opal stone with a graduated, elongated opal drop make up this beautiful PENDANT Almost has a lariot style vibe to it. set in sterling on sterling chain, Included Appears to be Native American made to me. The play of color on these stones is quite stunning. large flashes of orange and red as well as green purple and blue.. the entire rainbow essentially. Stamped with the word Sterling on the back side Of the pendent. And the chain is marked 925 at the clasp.