Stunning vintage-looking silver colored necklace

I bought this at a specialty boutique near Boco Raton Florida a few years back. It would look stunning with a deep v-neck or even just a regular collared dress or shirt! I don’t know the history on it- but it is vintage looking and has minor imperfections that it came with (see pictures). It appears to be about 10 inches with the tape measure I have in one picture. I haven’t worn it except to try on- so it is as good as new!