6.17 ct Lightning Ridge black opal and 1.53 ct diamond drop earrings. Featuring two free form cabochon cut Lightning Ridge, black opals of estimated total weight 16.17 cts, accented with one hundred bead set round brilliant cut diamonds of estimated total weight 1.53 cts, F - G colour, VS2 clarity. Finished weight 24.32 grams. Length 44.80 mm. New Zealand Gemmologist report and Australian documents available.