The Duchess of Cambridge is on a roll this week! After rocking an extravagant diamond and pearl tiara at a state dinner yesterday, Ms. Middleton stepped out in a plum-hued lace dress today continuing her sartorial winning streak. Lace can be a particularly difficult fabric to pull off and easily veers either too bridal (in cream or white) or too risqué (especially in red). Of course, Kate nailed this trend effortlessly styling the jewel-tone Dolce & Gabbana frock with monochromatic accessories: Her minaudière and suede pumps in deep burgundy were the perfect compliment. This is how you do lace for fall in the classiest possible way.