Dainty Australian opal ring set with round brilliant diamond in platinum 900.  The opal plays predominantly green and blue with flashes of purple, orange, and yellow, "play of color" rainbow effect. The opal is in asymmetric shape, weight 24.39ct, it embellished with twenty (20) diamond weight 0.29ct, G-H color/VS2 clarity.  Ring top is 25.12 x 22.83mm, ring size 7 3/4, weight 15.6 gm. Hallmark PT900

The purchase is accompanied with a professional appraisal with estimated replacement value of $ 8,995