Antique Edwardian Natural Pearl and Diamond Brooch in Platinum, by Black Starr & Frost

The bar brooch of pierced design, with 4 natural button pearls, separated by old European and transitional cut diamond pairs in a scroll motif, in millegrain detailed platinum, with a 14k white gold pin. Signed BS F for Black Starr Frost. Accompanied with a GIA report stating that a pearl was tested as a natural saltwater pearl, of white color with orient overtone, with no indications of treatment. Please note this item cannot be shipped internationally as it contains material that may be either