This antique French brooch is made of 18k gold, with every other set of prongs done in sterling. This brooch is adorned with a ring of faux crystals and faux turquoise made of glass. The pin catch on this brooch has been repaired. It weighs 8.7 grams and measures 27mm in width. This piece is in excellent antique condition with light wear. This item is marked with a Franch hallmark as shown in photo. Follow me on Instagram for special deals ;) @mindilynjewelry