AgAu Jewellery has dated this piece to the 1950s.

Metal: 9ct Yellow Gold.
Stones: 1 x blue topaz (1.00ct), 5 x diamonds, totalling (0.15ct)
Size: Pendant 1.8cm long, 0.7cm wide. Chain 18"/45cm
Hallmarks: Marked 9ct
Weight: 4.2g
Condition: This item is presented in excellent 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