A group of unmounted opals, comprising: a pair of triangular boulder opals,...
A group of unmounted opals, comprising: a pair of triangular boulder opals, the first measuring 19 x 17.8 x 4mm, weighing 10.70 carats, the second measuring 19.8 x 17.2 x 4mm, weighing 11.50 carats; a pair of pear-shape sugar acid treated opals, the first measuring 29.5 x 13.5 x 4.5mm, and weighing 11.64 carats, the second measuring 29.5 x 14 x 4mm, and weighing 11.46 carats; a pair of pear-shape sugar acid treated opals, the first measuring 36.5 x17.5 x 4.7mm, weighing 20.38 carats, the second measuring 37.5 x 17.6 x 5mm, weighing 20.94 carats; and a freeform Andamooka opal, measuring 44.2 x 21.5 x 3.5mm, and weighing 23.11 carats (7)
A group of unmounted opals, comprising: a pair of triangular boulder opals, the first measuring 19 x 17.8 x 4mm, weighing 10.70 carats, the second measuring 19.8 x 17.2 x 4mm, weighing 11.50 carats; a pair of pear-shape sugar acid treated opals, the first measuring 29.5 x 13.5 x 4.5mm, and weighing 11.64 carats, the second measuring 29.5 x 14 x 4mm, and weighing 11.46 carats; a pair of pear-shape sugar acid treated opals, the first measuring 36.5 x17.5 x 4.7mm, weighing 20.38 carats, the second measuring 37.5 x 17.6 x 5mm, weighing 20.94 carats; and a freeform Andamooka opal, measuring 44.2 x 21.5 x 3.5mm, and weighing 23.11 carats (7)
