Brooch with pearl, old-cut and octagonal diamonds

Brooch with Akoya cultured pearl 6 mm and many old-european- and single-cut diamonds totalling ca. 2.65 ct, of which 2x ca. 0.45 ct, ca. STW (I-J)/SI and further stones in different grades of colour and clarity, 14K white gold, 13.3 g, mid of 20th century, points of solding partly not very exactly crafted, but all in all in good condition.