Rose gold necklace statement with set rhinestones 17” & 3” extender

Rose gold necklace statement with set rhinestones 17” & 3” extender. Thought was gold tone metal but has a rose gold or copper ish color to it. Posted one pic by gold to see the slight difference in color. Super pretty. Perfect sass to classic clean styles. Great mixed in with tons of chains. Might be a retired Lia Sophia style but not sure.