AgAu Jewellery has dated this piece to the 1950s.

Metal: Pendant is 18ct yellow gold. The chain is 18" is 10ct yellow gold.
Stones: 9 x princess cut diamonds (0.25ct)
Size: Pendant size 1.6cm long/ 0.9cm wide. Chain size 40cm/ 16"
Hallmarks: Pendant are marked 18ct and the chain is marked 10ct.
Weight: 1.6g
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