AgAu Jewellery has dated this piece to the 1960s.

Metal: Pendant is 10ct gold. The chain is 18"/46cm 9ct gold,
Stones: 3 x Tanzanite (0.25ct), 1 x (1 points)
Size: Pendant size 1.6cm long / 0.3cm wide. Chain size 18"/46cm
Hallmarks: Pendant 10ct / Chain marked 9ct
Weight: 1.2g
Condition: This item is presented in very good condition.
AgAu Jewellery has dated this piece to the 1960s.
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