2 Carat European Cut Diamond Earrings w/ Emerald Accents Platinum2 Carat European Cut Diamond Earrings w Emerald Accents Platinum. These dazzling modern diamond stud earrings really shine inside their emerald halo! The Round Brilliant Cut diamonds are each . 66 carats and surrounded by a gorgeous halo of French cut emeralds and bordered in milgrained platinum. The unique larger shapes that four of the emeralds culminate in give these studs sophisticated look that adds just the right amount of green!