This estate brooch is a flower burst / starburst / sunflower the color of radiant sunshine. It is vintage but in perfect condition & dates to the early 1960's when bold pieces like this were so popular. The back is clearly marked 14K gold, difficult to photograph though and the center is a 6 karat 9mm citrine in a beautiful yellow color. The pin is in excellent working order. It measures 1 3/4" diameter. (Note: I have two matching round citrines that I removed from some screw back earrings that were part of this set (I felt they were too old fashioned to list as is). Please make an offer if you are interested. They would be great in a ring or for a pair of earrings or other future pieces. The citrine looks very much like a topaz to me.