AgAu Jewellery has dated this piece to the 1950s.

Metal: Pendant is 9ct white and yellow gold. The chain is 9ct yellow gold.
Stones: Sapphire and Diamond
Stone Size. Sapphire (2ct), Diamonds (1 points)
Size: Pendant size 2.0cm long/ 0.8cm wide. Chain size 45cm/ 18"
Hallmarks: Both chain and pendant are marked 9ct.
Weight: 1.62g
Condition: This item is presented in very good condition
AgAu Jewellery has dated this piece to the 1950s.
Agau jewellery offer an extensive range of 9ct and 18ct gold jewellery.
You can view the stock and full dealer information on the AgAu Jewellery Profile Page