I'll be happy to answer any question: feel free to ask.
This is a nice antique brooch.
18 carats gold with French gold mark: "tête d'aigle" .
It is decorated with a small sapphire, pearls and rose-cut diamonds.
Dimensions: 2,5 x 2,3 cm
Total weight: 2,2 grammes
Period: 1880 - 1920
Good condition, little scratches of use.
Here is a converter inches / cm to help you with the dimensions: