Neutral Coloured Necklace for all Occasions

I'm making this necklace up for a friend who needs it to go with a light khaki coloured jumpsuit. The crystal brooch is detachable. The stones which are chalcedony and an agate, are such beautiful neutral colours that the necklace will pretty much go with most things. It will look great with the intended casual jumpsuit but also jeans and t-shirt as well as for a more dressy occasion.