Antique Czech Brass Filigree Sapphire Prong Set Blue Crystal Pendant Necklace

Stunning 1920’s brass filigree pendant necklace.  Sparkling faceted royal sapphire blue crystal rhinestones in round and pear shapes and various sizes; 15mm-4mm.  All stones are original and securely set.  Pendant is 65mm x 40mm with an additional dangle length from the 19.75” chain with the (15mm / 9/16”) bail.  Chain is a wide wire rolo chain that has the appearance of a box chain.  Spring ring closure is secure.  No damage or condition issues of note.  No hallmarks found.  But this is a very high end and well made piece, most certainly Czechoslovakian.