Dates to the late Edwardian era, early Art Deco era, circa 1915.
Crafted in solid 10K yellow gold. Hallmarked upon the pin stem, but as I could not read it clearly, I have also carefully acid tested this piece.
Bezel-set with a deep red French-cut garnet, which has a geometric etched surround that also wraps around a claw-set genuine seed pearl at the base.
The stickpin measures 2.50“ from end to end, with a top portion that measures 0.60“ by 0.45“. This piece weighs 1.6 grams.
Condition is very good, with no repairs. Some very light scratches to garnet noted with a 10X loupe.