Manuel Vilhena / Jacqueline Cullen

Not all Black Mondays are bad. For this one, we can thank Portuguese artist Manuel Vilhena and his industrial rings in iron and ebony (with touches of amber).

Bonus link: for more black, see London's Jacqueline Cullen, who works with Whitby jet (famously used in Victorian mourning jewellery). This piece is studded with Swarovski crystals.

Even more jewellery:

• Lucy Easton (UK) - modern & geometric


• Brooke Battles (Oakland, CA) - dark silver


• Namu Cho (Baltimore) - Damascus steel


• Swish Wish (Puerto Rico) - chains & pendants


• Teresa Dantas (Portugal) - art brooches