Early 20th century diamond bow brooch in fitted box

Overall fair to good condition, it would benefit from a clean, with light surface scratches and minor nicks.  Most of the diamonds are old European cut diamonds, some are transition cut and some are single cut. A few of the diamonds have surface reaching fractures and a few have small chips or cracks. Most seem to be drawing colour, but this could lighten once cleaned. The settings may need attention. The pin and clasp are in good working order. The box is in a fair condition with wear in keeping with the age of the piece, clasp is in working order.