The coronation of King Charles III and Queen Camilla

This procession is the moment that many royal supporters have waited all day for -- the King and Queen, followed by a huge parade of soldiers, musicians and horses, are passing by cheering crowds on their way to Buckingham Palace.

The Gold State Coach that carries the monarch and his wife is incredibly heavy -- weighing 4 tons -- meaning that it can only travel at walking pace.

Ahead of the celebrations, Sally Goodsir, the Royal Collection Trust’s curator of decorative arts, said: “It is nearly four meters tall. It’s over seven meters long. It weighs four tons. Because of that it can only be used at a walking pace, which really adds to the majesty and stateliness of this great royal procession."

"There are very few monarchies which have retained coaches working of this age, and therefore it’s an incredibly special thing to see," she added.

It’s covered in painted panels “that exemplify” what George III, who was monarch when the coach was built in 1762, believed he would bring to the nation. “Protecting the arts such as architecture and sculpture; protecting peace in this nation, there’s figures of Mars and Minerva, the classical gods of war, but they’re not at war, they’re actually holding the British Crown aloft. So, there’s lots of messages and symbolism,” Goodsir said.

While many royal fans are lining the streets of London and millions more are watching the coronation at home, some Brits are questioning spending money on such an opulent event as the cost of living crisis continues to grip the country.

Stubbornly high inflation, years of wage stagnation and the sudden and steep rise in energy prices have left millions of Brits on the brink of poverty. Yet at the same time, the UK government is getting ready to spend tens of millions of taxpayers’ money on a glitzy event celebrating one very, very rich man: King Charles III.

CNN visited Doncaster which, like many parts of Northern England, has never quite recovered from the industrial decline and mine closures of the 1980s and 90s. Already struggling, the region has been hit hard by the severe cost of living crisis that is now impacting the whole of the UK.

The government has refused to put a figure on the cost of the coronation, with estimates by British media ranging from £50 million to more than £100 million ($63 million to $125 million).

Across the country, meanwhile, real wages including bonuses fell 3% in the three months to February, according to the Office for National Statistics. That’s one of the largest falls since records began in 2001.

It’s a contrast which hasn’t been lost on these Brits.

The newly-crowned King has left Westminster Abbey and entered the Gold State Coach, which will take him back to Buckingham Palace.

The coach has been used in every coronation since that of William IV in 1831, providing a powerful connection to previous elaborate ceremonies.

It is drawn by eight Windsor Grey horses.

This coronation procession will follow the same route but be much larger in scale than the one preceding the coronation service. It will feature “Armed Forces from across the Commonwealth and the British Overseas Territories, and all Services of the Armed Forces of the United Kingdom, alongside The Sovereign’s Bodyguard and Royal Watermen,” according to the royal household.

WATCH HERE:

A scheduled flypast over Buckingham Palace to celebrate the King’s coronation could be scaled back or cancelled due to adverse weather conditions. 

A final decision is expected to be made at 2 p.m (9 a.m. ET), a half-hour before the flypast is scheduled to happen.

The flypast is meant to last six minutes and feature more than 60 aircraft divided into 14 waves from across the Navy, Army and Royal Air force. 

Royal Air Force air chief marshal Sir Michael Wigston Friday said it’s “50/50” as to whether the event will go ahead.

"God Save the King" is being sung for Charles III for the first time since his crowning, as Britain's first coronation service in seven decades moves towards its conclusion.

It's the same arrangement of the anthem that was sung for Charles' mother, Queen Elizabeth II, at her coronation in 1953.

Next, the procession of the King and Queen will begin.

It appears that Prince Louis briefly retired from the service. Louis had been seated next to his mother, the Princess of Wales.

It was thought that the five-year-old prince might leave early. He returned before the end of the service.

Holy Communion, or the taking of consecrated bread and wine, is an act of worship integral to Christianity — the “ultimate act of remembering Jesus,” as the Church of England says in its official liturgy.

The King acknowledges the gifts of bread and wine as they are taken to the High Altar before the Archbishop of Canterbury says two prayers – the Prayer Over the Gifts and the Eucharistic Prayer.

The first of these was used at Queen Elizabeth II’s coronation and found in the Liber Regalis (The King’s Book), one of the oldest and most important sources for the coronation service. The second draws from many different sources.

The beginning of the Eucharistic Prayer echoes words used at the Queen's 1953 coronation and adds words from the Bible. The prayer’s central section draws from Jesus’ words when he served bread and wine to his disciples at the Last Supper before he died, according to the liturgy.

Then, Sanctus is sung. The text dates from the fifth century and possibly earlier. It's set to music is a new commission for this service by the British composer Roxanna Panufnik.

The Eucharistic Prayer continues, followed by the Lord's Prayer. The King and Queen receive Holy Communion as the choir sings the Agnus Dei, another traditional text for the mass, set to new music by Tarik O'Regan.

Britain's King Charles III has been crowned in a magnificent and deeply religious ceremony at Westminster Abbey.

The coronation — a symbolic coming together of the monarchy, church and state — is being attended by dignitaries from around the world, and thousands of people have gathered in London to take in the pageantry. It's Britain's first coronation in 70 years.

See photos from the day so far:

Now that the King is crowned, Queen Camilla is receiving her own coronation — albeit in a slightly different form.

Like her husband, she is anointed with holy oil by the Archbishop of Canterbury, but without a screen, which demonstrates the different nature of anointing a consort compared to a reigning sovereign.

The Keeper of the Jewel House then presents the Consort’s Ring, which symbolizes promise and commitment, “marrying” her to the King and both to God and their people.

Next, she is crowned with Queen Mary’s Crown, marking the first time in recent history that a new crown wasn't made specifically for this occasion, and presented with the Sceptre and Rod.

Finally, Camilla is enthroned. This is followed by an original composition by Andrew Lloyd Webber that sets verses from Psalm 98 to music.