Antique Vtg 2 pcs Black Onyx/Jet (?) Brooch & Pendant

Antique Vtg 2 pcs Black Onyx/Jet (?) Brooch & Pendant Two Pieces: 1 :Beautiful old black & gold onyx / jet (?) brooch with openwork, scalloped gold-work around border Measures approx: 1 3/4" long x 1 1/8" tall 2. Pretty delicate old black & gold pendant w rope edging & etched gold-work around border ( NO chain included) Measures approx: 1" Tall x 1/2" wide Both pieces have faceted edging around the black onyx / jet area These are not 'marked' as gold, however given the age, the etching designs, and 'magnet test' they look and seem to be gold Both pieces had been handed down through family - Total wgt for both pieces ( on postal scale) : 0.4 oz. Hope you love them - THANK YOU