Robuta

https://www.sothebys.com/en/buy/auction/2025/fine-jewellery-ge2512/sapphire-coloured-sapphire-and-diamond-necklace Julius Cohen | Sapphire, coloured sapphire and diamond necklace | julius cohen sapphire coloured diamond necklace https://www.awm.gov.au/collection/R1572011 Julius Allen Cohen | Australian War Memorial allen cohen julius australian war memorial https://www.awm.gov.au/collection/R1520817 Julius Allen Cohen | Australian War Memorial allen cohen julius australian war memorial