Half Sovereign Pendant P274

Half Sovereign Jewellery  Genuine Half Sovereign set in a solid 9ct yellow gold enhancer pendant, with SIH Diamonds.

Sovereign Coin Round_White Diamond SI H Sovereign Enhancer
in 9ct Yellow Gold

TDW : 12=0.13 ct.approx

Depending on the date range generally 1900 to 1920,  most are minted in the  United Kingdom occasionally minted in Australia.