Excess...... 4 strands of pearls
Four strands are an indicator of inferiority
The pearls were on loan from the Queen.
That beautiful necklace was loaned to Catherine for the occasion by its owner, Elizabeth 2, the most recognized and influential female leader worldwide of the past 70 years, who has worn it herself at many public events. To paper over her inferiority, you say? Pray tell, to whom?