Vintage / antique Bohemian Gablonzer brooch with hand carved black rhinestones 1920s 1930s buying Exquisite gift for her Art Deco jewelry Gablonz

A delicate and gorgeous little thing.
Made in the Bohemian city of Jablonec nad Nisou (Gablonz an der buying Neiße when it was part of the Austro-Hungarian empire) known for its jewelry and glass production. Such old and pretty Gablonzer pieces are really hard to find :)
6.2 cm x 3.3 cm.
Nice vintage condition. The lock seems to miss a part, but the brooch can be used as it is (I tried it) or can easily be repaired.