If you're after a show-stopping stone, this diamond cut is known ... Thelma West "Jubilant" emerald ring in 18K rose gold and black ceramic, price upon request, thelmawest.com.

Bespoke is still top of the agenda, as jewellers cast wedding bands to fit precisely ... says Jessica McCormack of the shift to softer stone shapes. “We love setting them east or west with black gold, ...