This lovely pin was custom made in the 1950's. It is not marked but tests to 14k by acid test method. The pin is over 1 1/4 inches across and has a light jadeite centre that is almost 1 inch across. In the centre of the jade circle is a beautiful large cultured pearl that is 9mm. The brooch is further adrorned with 123mm cultured pearls surrounding the jade. Everything about this pin is quality. All the small pearls are bead set in, the jade has 12 claws, and the back has a place to put a bale for a necklace if so desired. The pin has a good weight to it at 14.1 grams. American in origin.