This is a lovely vintage or antique bar brooch, which is made of 9 carat gold and is set with a blue topaz. The stone is round with a diameter of 8mm. The entire brooch is 6cm long. The gold is not marked but tests as 9 carat. The catch is of the old style, which would indicate that this brooch is probably antique rather than vintage. The brooch weighs 2.55 grams and is in excellent condition.