Measuring 1 inch tall and 1 inch wide, weighing 2.7 grams this little pin is prettier than the photos. In excellent condition, the pin is an antique. The lady in the moon motif has been around awhile.  Nice diamond but I know nothing about diamonds so beyond that...  Bought this about 25 years ago when I was in my looking backwards mode.  Thanks for your interest......The gold stamp is all over the back of the pin.  The pin part functions and is not damaged but I had trouble keeping it clasped, could be the fabric I had it on or just me. ( Added some more pics, check them because this pin is prettier than the photos and the pink background pictures are better)