Queen Mathilde and King Philippe of Belgium Hosted a State banquet at the Royal Castle in Brussels on June 27, 2018

Queen Mathilde of Belgium looked as regal as ever as she joined her husband King Philippe of Belgium for a state banquet on June 27, 2018

Queen Mathilde of Belgium greeted guests individually as they arrived at the Castle of Laeken

Queen Mathilde of Belgium looked regal in a full-length lilac ball gown with pleated detail for the banquet. She paired it with matching clutch bag, opted for the Wolfers tiara and accessorize with a pair of diamond earrings which perfectly complemented her crown.

Queen Mathilde of Belgium wore the Wolfers tiara, one of Queen Fabiola's wedding presents and the 200 diamond accessory doubles as a necklace during a state banquet 2018 in Brussels

Belgium's Queen Mathilde (L) and King Philippe (2nd-R) were joined at the historic castle by the Governor-General of the Commonwealth of Australia, Sir Peter Cosgrove and his wife Lady Cosgrove, could be seen toasting the evening during a state banquet in Brussels

(L) Queen Mathilde of Belgium looked resplendent as she joined her husband King Philippe (2nd-R) at a state banquet in honor of their guests Sir Peter Cosgrove and his wife Lady Cosgrove

Queen Mathilde of Belgium is resplendent in a lilac ball gown, wearing a Wolfers tiara upon her chic updo and a pair of diamond earrings at a state banquet in Brussels

Queen Mathilde of Belgium wore a full-length lilac gown and the family's Wolfers tiara attends the official gala dinner 2018 at the Royal Castle in Brussels

(L-R) Queen Mathilde of Belgium, Sir Peter Cosgrove, Governor General of the Commonwealth of Australia, King Philippe of Belgium and H.E. Lady Cosgrove pose for the picture prior to the banquet at the Royal Castle on the first day of the official visit to Belgium on June 27, 2018, in Laeken, Belgium.

(L-R) Queen Mathilde of Belgium, H.E. Lady Cosgrove, Sir Peter Cosgrove, Governor General of the Commonwealth of Australia and King Philippe of Belgium pose for the picture prior to the banquet at the Royal Castle on the first day of the official visit to Belgium on June 27, 2018, in Laeken, Belgium.

(L-R) Queen Mathilde of Belgium looked regal in a full-length lilac ball gown with pleated detail and wore a ceremonial purple sash, representing the Order of Leopold with Lady Cosgrove of Australia pose for the picture prior to the banquet at the Royal Castle on the first day of the official visit to Belgium on June 27, 2018, in Laeken, Belgium.

(L-R) Sir Peter Cosgrove, Governor General of the Commonwealth of Australia and King Philip of Belgium pose for the picture prior to the banquet at the Royal Castle on the first day of the official visit to Belgium on June 27, 2018, in Laeken, Belgium.

(R-L) King Philippe of Belgium looked his dapper best in full military dress decorated with medals and wearing purple sashes representative of the Order of Leopold, and Sir Peter Cosgrove, Governor General of the Commonwealth of Australia also wearing his full military dress pose for the picture prior to the banquet at the Royal Castle

(L-R) Queen Mathilde of Belgium, Sir Peter Cosgrove, Governor General of the Commonwealth of Australia and King Philippe of Belgium welcome guests prior to the banquet at the Royal Castle in Laeken, Belgium.

(L-R) Queen Mathilde of Belgium, Sir Peter Cosgrove, Governor General of the Commonwealth of Australia and King Philippe of Belgium welcome guests prior to the banquet at the Royal Castle in Laeken, Belgium.

(L-R) Queen Mathilde of Belgium, Sir Peter Cosgrove, Governor General of the Commonwealth of Australia and King Philippe of Belgium welcome guests prior to the banquet at the Royal Castle in Laeken, Belgium.

King Philippe of Belgium delivers a speech for Queen Mathilde of Belgium, Sir Peter Cosgrove, Governor General of the Commonwealth of Australia, H.E. Lady Cosgrove and guests prior to the banquet at the Royal Castle in Laeken, Belgium.

King Philippe of Belgium delivers a speech prior to the banquet at the Royal Castle in Laeken, Belgium.

Sir Peter Cosgrove, Governor General of the Commonwealth of Australia and King Philippe of Belgium take a seat at the beginning of the banquet at the Royal Castle in Laeken, Belgium.