Sometimes, perfectly formed fine jewellery doesn't need any of the gemstones – it's more than enough as it is. A case in point is Nada Ghazal's Malak ring. Eschewing the stones it's normally punctuated with, its natural, organic form is revealed, displaying a yellow gold structure that's been moulded with a squared-off form and a slightly hollowed centre. 18kt Yellow Gold. Colour: natural