British holidaymakers heading to Europe are already grappling with the continent’s heatwave, and with sizzling temperatures predicted for the UK this weekend, even those staying put may soon be wrestling with the heat.

Europe’s temperatures are soaring above 40 degrees in the shade and over 50 in direct sunlight, prompting a warning for tourists planning to accessorise their summer outfits with jewellery.

Leading British jeweller Chisholm Hunter has issued advice on how to protect both your…