Gold, Platinum And Diamond Neglige Necklace

18 carat white gold necklace, eagle head hallmark.
It consists of a figaro chain.
It supports a platinum motif, dog head hallmark.
This motif formed by a bar of three diamonds supports two offset old-cut diamonds connected by knives.
Weight of the main diamonds: 1.50 carats.
Length: 42 cm
Length of the motifs: 3 cm and 4 cm
Characteristics of the stones: presumed color H / Vs1
Weight of the jewel: 6.2 g

French work circa 1900