Kate stopped to speak to members of the general public throughout a walkabout in Merthyr Tydfil.
Diana tragically died in a automotive accident in 1997.
A clip posted to Instagram exhibits the princess talking to followers about her blue sapphire ring, which initially belonged to her late mother-in-law.
“It is the identical ring and it was precisely the identical dimension once I tried it on,” she is heard telling a fan.
She provides: “With the kids and the grandchildren, she would’ve beloved being a grandmother a lot.
“She could be good. We miss her each day.”
It got here a day earlier than the Prince and Princess of Wales visited the city of Aberfan, the place a landslide killed 144 individuals together with 116 kids in 1966.
William and Kate got a tour of the Aberfan Memorial Backyard, opened by the Queen in 1974 to commemorate victims.
The royal couple have been greeted by cheering crowds waving Welsh flags as they arrived on the village.
They have been launched to Mair Morgan, one in every of solely 4 lecturers to have survived the catastrophe and the one one nonetheless alive at present.
Earlier this week, the Royal couple abseiled collectively off a cliff within the Brecon Beacons, whereas assembly mountain rescuers.
William and Kate arrived at a moist and windy space of the Bannau Brycheiniog close to Merthyr Tydfil within the South Wales Valleys on Thursday sporting mountaineering gear, and placed on security gear prepared for the descent.
They have been guided by way of the method by the Central Beacons Mountain Rescue Group, a volunteer-run organisation which responds to calls 24 hours a day, all yr spherical.