For sale — an antique 19th century Citrine brooch in the baroque manner . With 10k acid it begins to lift after about a minute or so … gold filled / low grade gold content (9k?) … not sure … about 2.25“ by 1.5“ … the oval citrine measures about 30mm by 20mm… some visible solder (shown in last photos)… weighs about 17.91 grams. Thank you.