|William and Kate will visit the Taj Mahal, depicted here in 2013, during the tour of India and Bhutan (Photo: Daniel Berehulak/Getty Images)|
|Left: Kate at the Blenheim War Memorial, April 2014 (Photo: Martin Hunter/Getty Images); Right: Kate at the World Trade Center Memorial, December 2014 (Photo: Carl Court - WPA/Getty Images)|
It's not unusual for a Cambridge royal tour to begin with a stop at a place of remembrance, and Kate generally keeps her jewelry appropriately low-key -- usually just a simple pair of earrings. At the Blenheim War Memorial in New Zealand, for example, Kate wore her diamond and sapphire cluster drop earrings with a blue coat. At the World Trade Center Memorial in New York, she wore her Kiki McDonough green amethyst cushion drop earrings.
|Left: Kate at Forstyth Barr Stadium, April 2014 (Photo: Anthony Devlin - Pool/Getty Images); Right: Kate at Craigmount High School in Edinburgh, February 2016 (Photo: Andrew Milligan - WPA Pool/Getty Images)|
Kate tends to keep her jewelry to simple earrings for "sporty" events as well; quite often we see her in pieces from her growing Kiki McDonough collection. She wore her Kiki McDonough green amethyst oval drop earrings in New Zealand for a rugby-themed engagement. Earlier this year in Scotland, Kate played tennis while wearing her Kiki McDonough "Lauren" earrings.
|Left: Kate in Queenstown, April 2014 (Photo: Chris Jackson/Getty Images); Right: Kate in Edinburgh, February 2016 (Photo: Danny Lawson - WPA Pool/Getty Images)|
When Kate has an engagement that involves a wardrobe change, she often keeps her jewelry the same. Just after the rugby engagement in New Zealand, for example, she wore the same green amethyst earrings to visit Queenstown. In Edinburgh, she wore the "Lauren" earrings for both the tennis workshop and a visit to an art class.
|Left: Kate at the Sun Military Awards, December 2011 (Photo: John Stillwell/AFP/Getty Images); Right: Kate at the National Portrait Gallery, February 2014 (Photo: Alastair Grant-WPA Pool/Getty Images)|
I don't expect to see a tiara on this tour, but I do expect this particular reception to be a black-tie affair. Charles and Camilla hosted a dinner for the British Asian Trust in February, and here's what Camilla wore...
|The Duchess of Cornwall attends a reception and dinner for the British Asian Trust, February 2016 (Photo: Alan Davidson-WPA Pool/Getty Images)|
|Left: Kate at a GREAT event in New York, December 2014 (Photo: Kevin Mazur/Getty Images POOL/Getty Images); Right: Kate at a GREAT event in London, October 2015 (Photo: Chris Jackson/Getty Images)|
I imagine this event will be typical of Kate's daytime engagements. To give you a general idea of the jewelry she's worn before at GREAT events: in New York, she wore her Cartier Trinity Necklace with Kiki McDonough's green amethyst cushion drop earrings. In London, she helped host the Chinese president at a GREAT event while wearing her Mappin and Webb Empress earrings.
|Left: Kate at the Australian War Memorial, April 2014 (Photo: Stefan Postles/Getty Images); Right: Kate at the World War I Centenary Commemoration Service, August 2014 (Photo: Chris Jackson/Getty Images)|
Again, Kate usually keeps it very simple for these events, rarely debuting new or significant pieces, to help keep the focus on the matter at hand. In the past, she's often selected her diamond and sapphire cluster drop earrings or her Annoushka pearl drops for visits to military memorials. At the Australian War Memorial in 2014, she also wore her delicate Asprey necklace with small woodland charm pendants.
Kate and William's next engagement in New Delhi is a visit to the Gandhi Memorial and Museum. I think it's very possible we'll see her repeat the same jewels worn at India Gate.
|Left: Kate in Singapore, September 2012 (Photo: Ian Vogler - Pool/Getty Images); Right: Kate in Malaysia, September 2012 (Photo: Danny Lawson - Pool/Getty Images)|
During the 2012 royal tour of Southeast Asia, Kate wore the same earrings -- her diamond and aquamarine pair -- at two different British High Commission receptions. One of them was an evening reception, so it's possible that we'll be looking at jewels of approximately the same scale for this reception. Since the party honors the Queen, I think it's also possible that we'll see Kate pay tribute to her with a brooch (perhaps even one borrowed from the BP vaults).
The New Delhi leg of the tour wraps up on the morning of April 12, when William and Kate have two more engagements: one focused on supporting young people, and another that includes a meeting with a government leader. They haven't announced details yet, but I'm guessing this will be another occasion where we'll see Kate in her daytime jewelry "uniform" -- simple earrings, a watch, her rings, and maybe a bracelet.
Stay tuned later today for more tour jewel predictions!