Help with a brooch

[Waresandwares]

I was wondering if anyone could help with Brooch in attached pic

 

[Waresandwares]

More pics

 

[Waresandwares]

Another pic

 

[aubergine]

More pics

Looks like that could be Sphinx! - https://nasvete.com/english-jewellery-company-sphinx/

 

[Rue_de_la_Paix]

While I am not a collector of jewelry any longer, the mark looks like "Nemo". It is a really great brooch, the color mix is lovely.

We have some jewelry folks here on the VFG who would know for sure.