Sapphires: not Mellerio
When King Willem-Alexander was inaugurated on April 30, 2013, his wife Queen Máxima wore a magnificent tiara with sapphires that has been attributed to Mellerio by many people for a long time. This attribution is based on a tiara design from 1867 by Oscar Massin, who worked for Mellerio, but certainly not exclusively. The tiara Queen Máxima wore was made in 1881 in a different design, but still clearly based on the design by Massin. Ever since the publication of René Brus his book De Juwelen van het Huis Oranje-Nassau in 1996, it has been very clearly documented the attribution to Mellerio is unfounded.