In a deal with the Vodafone McLaren Mercedes, Diamond company Steinmetz has customised the carbon fibre steering wheels with white diamonds, unveiled in Monaco today.
The tie-up for the race in Monte Carlo, the most glamorous race of the Formula One (F1) world championship calendar, will also commemorative crash helmets featuring a Steinmetz world championship diamond crest.
Steinmetz has in the past applied diamonds to regulation F1 kit in Monaco, most notably a Steinmetz diamond-studded helmet worned by Lewis Hamilton when he won in 2008.
Lior Levin, marketing director of Steinmetz, said: "Steinmetz is back in Monaco for our eighth season and we couldn't think of a better way to commemorate the occasion than working on a unique collaboration with Jenson Button and Lewis Hamilton."
Jenson Button, the current F1 world champion, called the diamond steering wheel a "great honour" and said the workmanship was "beautiful".
Hamilton, whoe has been domiciled in Switzerland since his first world championship, said: "It's fantastic that Steinmetz is celebrating our world championship victories by incorporating unique diamond crests into the centre of our steering wheels. They look absolutely incredible and add a real bit of bling to the cars."