This is a Gold Stick Pin with a Tiny Diamond. It is 2 & 5/8" in length. The top of the pin with the stone in it measures 3/8" across by almost 1/2" in height. It has a nice design of 4 circles intertwined with a very small European Cut Diamond in the middle that is mounted above the circles. The circles that are on either side ( to the left and right )of the mounted stone, have a fancy design and is made in 2 pieces with the front hollow and has a backing on it. The design, mounting and prongs are in the shape of a flower with petals and have tall long prongs that hold the stone up high. There is not a mark on this stickpin, it may have a gold front with a gold filled backing on it.