Silver pendant with boulder opal

Amazing sterling silver necklace with natural collector's boulder koroit opal (original mining - Australia) code 4951

weight of the stone - 39.1 carat

weight of the pendant - 13.67 grams

pendant height - 2.2 in / 56 mm

stone - 0.28 x 0.71 x 1.77 in / 7 х 18 х 45 mm