Dates to the late Edwardian, pre-Art Deco era, circa 1915.
Crafted in solid 14K yellow gold, and hallmarked as such upon the pin stem.
Beautifully made, this pieces features a tiny eight-cut diamond of approximately 3 points, set into a buttercup mount setting. This is in turn surrounded by a delicately etched frame, which has leaf patterning on both the top and bottom.
The stickpin measures 2.44" from end to end, with a top portion that measures 0.69" by 0.42". This piece weighs 1.2 grams.
Condition is excellent, with no damages or repairs.