Princess Beatrix of the Netherlands celebrates a big milestone today: her 80th birthday! We’ve been marking the occasion all week by looking at some of her tiara moments, and today, we’re keeping the festivities going with a look at some of the jewels she wore with her trademark hats for Prinsjesdag during her reign.

1997: A floral cluster and drop brooch

1998: Sapphires, including the round sapphire brooch that belonged to Queen Wilhelmina

2002: Sapphires again, including Queen Wilhelmina’s brooch

2003: Diamonds, including diamond drop earrings and some of the family’s diamond stars

2004: Five diamond stars and diamond drop earrings

2006: Large diamond drop earrings and the family’s diamond scroll brooch

2007: Diamonds and rubies, with Queen Emma’s diamond and ruby bow brooch

2008: Queen Sophie’s Strawberry Leaf Brooch with pearls

2010: Diamonds and gray pearls

2011: Classic diamond drop earrings

2012: Diamond drop earrings and a scattering of diamond stars