A vintage sterling silver wire collar necklace with gemstone accents. This is most likely an artisan crafted piece of jewelry.
From a Wisconsin estate that contained some nice quality vintage and antique jewelry.
I am not a gemologist, but the gems appear to be smoky quartz, citrine and possibly blue topaz. They are definitely gems, and not glass (were checked with gem tester). It is possible that they are topaz, but my "best guess" is quartz. The size of gems is quite substantial.
The only mark found is a "925" stamp on the back arch of the neck wire. No artisan or maker's mark was found.
The interior circumference of the oval wire is about 16 inches, approximately. (See photos with ruler). The neck opening gap is about 2 inches wide, but the wire has some "flex", which makes it easier to put on and remove.
The condition is good, with minor wear
NOTE: Any display props are not included (ruler, coin, display box, etc.)