Giorgio Armani Si Sparkling Fragrance, €87, Giorgio Armani counters nationwide

There are times when a celeb endorsement of scent actually makes sense, and the pairing of Cate Blanchett and Si perfume is one of those instances. There’s something about her chilled-out chic that chimes with the grown-up notes of bergamot, neroli and jasmine, not to mention the heady rose de mai. This is a party-season limited-edition release, with a veil of shimmer with every spritz. “I love the note of patchouli that arrives late,” said one panellist.