The bluestone open oval brooch is a lovely accessory on its own or it can be paired with the matching pendant and earrings for the perfect ensemble transform a jacket sweater dress or even coat into something instantly striking with this stylish bluestone brooch pieces of authentic preseli bluestone are contrasted with shiny silver to create a beautiful mosaic pattern the stone is hand carved in england and polished to bring out its natural striationsbluestone is the collective name given to