Since Van Cleef & Arpels designed the classic tiara Grace Kelly wore when she became Princess of Monaco in 1956, this French jewellery house has continued to craft pendants, rings and brooches that women swoon over. High-end customers adore Van Cleef & Arpels' modern yet whimsical collection of jewellery and timepieces. The Alhambra necklace, which features mother-of-pearl clover leaves, is particularly exquisite.