Queen Beatrix of the Netherlands wears her diamond and sapphire necklace and its matching earrings for the 25th anniversary concert of the Master Pianists at the Concertgebouw in Amsterdam, March 2012; the modern sapphire and diamond suite is a part of Beatrix’s personal jewelry collection

Queen Beatrix of the Netherlands wears a modern necklace of mixed metals for a ceremony honoring the 100th anniversary of the Royal Dutch Mint in Utrecht, June 2011; she has worn several similar necklaces, all of which appear to be from her personal collection, in various numbers and lengths

Queen Beatrix of the Netherlands wears the family’s five-stranded pearl necklace with the pearl and diamond clasp for a visit to the Pushkin Fine Arts Museum in Moscow, June 2001; intriguingly, not much seems to be known about the provenance of this grand pearl necklace, though it’s possible that it’s an heirloom from Queen Sophie