Donna, without seeing an image of the actual mark, it's like looking for a needle in a haystack, sorry, especially if you are not certain about what you are seeing, we could be searching for days without any success. Though you mention the gold purity on your star burst jewel is 14 carat gold. Donna, as the brooch its comprised of 14 carat gold and is marked with a maker's mark, it's worth an appraisal. You will also get to know the value of this peice and also possibly the maker, if the expert can see the mark. The Expert Appraisal Form can be found HERE
Donna, I thought you might be astonished to see the amount of star burst jewelry embellishing Queen Alexandra, who was Queen consort of the United Kingdom and the British Dominions, and Empress of India, from 1901 to 1910. Edwardian Period.
