From a hand-me-down bracelet given to her by William to the necklace that the Princess of Wales inspired her to buy. Photos / Getty
It is no secret that the impressive engagement ring that Prince William presented to Kate in 2010 had previously belonged to his mother, Princess Diana.
However, the glistening sapphire and diamond rock is not the only tribute the Duchess of Cambridge makes to her late mother-in-law.
According to the Daily Mail it seems that Kate's jewellery box is littered with hand-me-down pieces belonging to the Princess of Wales as well as items she has been inspired to buy because of Diana.
From the iconic tiara that has been passed down through generations of royals to the necklace that new mother Kate purchased after seeing Diana's - here FEMAIL reveal the Duchess' most sentimental accessories.
The Duchess of Cambridge was pictured wearing an elegant pearl bracelet during a reception at Berlin's Clärchens Ballhaus on their final night of their royal tour of Germany in July.
It has since emerged that the original owner of the accessory was Diana who was spotted wearing the piece on various occasions before her untimely death.
The bracelet's designer Nigel Milne was surprised to see the jewellery been worn again decades after he created the piece in 1988.
Milne and his wife Cherry decided to produce several pieces of jewellery with proceeds of the sales going to charity BIRTHRIGHT, of which Diana is patron.
One of the pieces was the bracelet that could be seen adorning Kate's wrist and that Diana wore on several occasions including at the Birthright Ball in 1989 and with her iconic Catherine Walker "Elvis" dress.
On his website the British jeweller writes: "I am delighted to see in the national press that the Duchess of Cambridge chose to wear one of her late mother-in-law's favourite pearl and diamond bracelets on the Royal Tour in Germany last week.
"This look was very typical of the style of jewellery that we were making at that time. The Princess of Wales was the most wonderful inspiration for us jewellers in that she wore her jewellery with such style and panache."
THE FAMILY HEIRLOOM TIARA
Despite her title it is a rare occasion to see the Duchess of Cambridge in a tiara, however, when the occasion does arise, there is one crown that Kate seems to favour.
Her royal highness is most often seen in a pearl Cambridge Lover's Knot tiara a piece beloved by William's late mother, Diana, Princess of Wales.
The tiara was made by Royal jewellers Garrard in 1914 to Queen Mary's personal design, from pearls and diamonds already in her family's possession.
It was a copy of one owned by her grandmother, Princess Augusta of Hesse, who married the first Duke of Cambridge, seventh son of King George III, in 1818.
In her will Queen Mary left the tiara to to the Queen who wore it frequently, including at an evening event in 1955.
In 1981 she gave it as a wedding present to Prince William's mother, Diana, who wore it for the first time at the state opening of parliament that November.
Diana also wore the tiara in 1985 on an official visit to Washington with Prince Charles. And since her death the glistening head piece has been worn by the Duchess of Cambridge who was most recently spotted wearing it at the state dinner during Queen Letizia and King Felipe VI's visit.
The ring Prince William gave to Kate Middleton in late 2010 is among the most famous in the world. Lady Diana Spencer chose it for her engagement to Prince Charles in 1981 from a selection presented to her by the then Crown jewellers, Garrard of Mayfair.
The statement piece consists of an oval 12-carat Ceylon sapphire surrounded by a cluster of 14 solitaire diamonds set in white gold.
It cost $50,184 in 1981, but its legacy as the engagement ring worn by both Princess Diana and the Duchess of Cambridge makes it priceless.
Unusually for a member of the Royal Family, it was not unique and any member of the public could buy the same ring from the Garrard catalogue.
DIANA'S FAVOURITE ARABIAN SAPPHIRE EARRINGS
These earrings - a single Saudi Arabian sapphire surrounded by ten round diamonds - became Diana's favourites, worn to mark Prince Harry's birth in 1984.
They're believed to have come from the strap of the watch she was given as a wedding present from the Saudi Crown Prince, recognisable because of the rare faceted sapphires.
The earrings originally featured four sapphire and diamond clusters - two of which were detachable pendant drops - but Diana preferred to wear the earrings without the extra sapphires.
The earrings became part of Diana's bequest to her sons. Shortly after their engagement in 2010, Prince William gave them to Kate, who put her own twist on them with a drop style.
THE NECKLACE THAT KATE WEARS AS TRIBUTE TO DIANA
A gift from Charles to mark William's birth in 1982, a gold hoop style necklace, commonly called a "torque", bore a gold disc engraved with "William" written in Charles's distinctive loopy handwriting
Diana regularly wore the pendant in private, but appeared in public in it just once: at a polo match at Windsor in August that same year.
Today, the Duchess of Cambridge owns a similar pendant, an $156 gold chain from London boutique Merci Maman, bought by her sister Pippa in 2014.
Like Diana's, hers bears her son's name - as well as a discreet W.
As well as the many accessories influenced by her mother-in-law the Duchess has also been seen wearing a tribute to her step-mother-in-law.
Shortly after her wedding in 2011 Kate was pictured on several occasions wearing an elegant gold charm bracelet with two Cs engraved on it.
It was reported that the bracelet was a touching present from Camilla Parker Bowles, who has also worn a similar version of the bracelet on her wrist.
A source close to the young couple told The Daily Express it was a wedding present, before hastily insisting: "We're not saying from whom, as it was a personal wedding gift. It's a private matter."
The disc charm has Catherine's monogram on one side, and Camilla's on the other. Both are Cs are under a coronet, but Kate's C has an extra curl, while Camilla's is surrounded by a circle.