Aurora Borealis 9k Gold Brooch Pin Vintage Art Deco c1930.

Simply stunning & very unusual stone to the centre of this 9ct yellow gold brooch pin dating from the roaring 20's, the Art Deco period. The stone is known as an aurora borealis due to the mix of the colours resembling the natural Northern Lights visible in the polar regions mainly during the winter months.
The gold has been tested as there are no gold marks. Good secure clasp & pin, with a safety chain attached for added peace of mind. The stone is of a great colour & in good order see pictures.
Size 6.3 x 1.4 cm or 2.5 x 0.5 inches.
Weight 3.2 grams or 2 penny weight.