Expert craftsmanship meets feminine, floral styles in this world-famous jewelry shop.. In Short Although the imposing security guard behind the desk, the stark atmosphere of the surroundings and the forbidding display cases may suggest otherwise, you are not in a museum. You have ventured into one of the finest--and priciest--jewelry stores in the world. Diamonds, rubies, sapphires and lots of sparkly loot in feminine, botanical styles abound. The most popular pattern--Alhambra--features that distinct four-leaf clover design and is available in anything from necklaces to bracelets to belts. Van Cleef is also noted for its "invisible set" jewelry. The technique makes it seem as though stones are floating in air and renders the prongs, well, invisible. Women's jewelry reigns supreme here, but you'll also find a selection of cufflinks, studs and watches for men.