Helen Mirren at the 2018 Oscars wore more than $3.8 million worth of Harry Winston sapphires and diamonds including: a cushion-cut sapphire and diamond necklace (115.27 carats), cushion-cut sapphire and diamond earrings (25.22 carats) and a Winston Cluster diamond ring, 3.92 carats, all set in platinum. Harry Winston, Oscar Jewelry, Indigo Jewelry, Cluster Diamond Ring, Oscars Red Carpet, Sapphire And Diamond Earrings, Oscar Red Carpet, Latest Jewellery Trends, Celebrity Jewelry