This is not a matching set but very similar. Both are in good condition and kept in a clean smoke free home. Can be separated if you’d like to purchase either or. Necklace is a gold tone double chain. I don’t know what the gold plating is. I found no markings and don’t know the brand name. Chain is 24” and 34” approximately. Cameo 2 3/8” X 2”. Bottom front and back has slight wear and right side just above face has a red mark which I did not try to clean off and actually looks like paint from the cameo background. Will update if it’s removed. It’s not bad as shown in photos. It looks nice. Pendant is mobile but not removable unless you replace or remove attaching ring. Clasp works as intended. Brooch/pendant can be used either or, 30 mm X 25mm, marked 1/20 10K -(gold plated 10K), 5mm bail, pin clasp works as intended. #vintage #jewelry #cameo #gold #necklace #brooch #pin #vintagejewelry