Antique style unique diamond cut center stone pendant necklace

Antique style unique diamond cut center stone pendant necklace that throws off hues of blue/ green colors Features: *Claw clasp *Extender chain is 3 1/2" long and has a 1978 tm charm at the end of the extension chain. *Gold tone chain may be a little tarnished but maybe the antique overall look. *Blue & white crystal beads and rhinestones adorn the pendant *No missing stones *Antique condition Approximate Measurements laying flat from the center of clasp to the longest point. *9"