The red carpet at the Oscars this year was dazzling with beautiful, classic diamond jewels; here are the top six stars and their diamonds we have selected Natalie Portman dazzled on the red carpet wearing a beautiful V-shaped platinum and diamond cluster necklace and a stunning pair of oval shaped diamond drop earrings totalling 5.76 carats, beautifully set in platinum. Michelle Williams wore a gorgeous round brilliant diamond chocker necklace. Penelope Cruz wore a stunning fancy shaped diamond bracelet beautifully hand set in platinum. Each diamond on the bracelet totalled 48 carats.. The actress also wore with matching diamond cluster earrings totalling 15 carats and a 56 carat pear shaped diamond necklace. Cameron Diaz sparkled in a vintage style platinum emerald cut diamond necklace with a fancy yellow diamond ring and a large diamond dome ring. Jennifer Lopez wore stunning round diamond drop earrings beautifully set in platinum. Sandra Bullock wore a beautiful pair of elegant diamond drop earrings featuring four round diamonds set in rose gold.