The Real History Behind Kate Middleton's Royal Jewelry

Kate's most famous piece of borrowed jewelry would have to be the Cartier "Halo" tiara that she wore for her wedding day in 2011. The tiara was purchased from Cartier in 1936 by King George VI (the Duke of York) as an anniversary present for his wife, Queen Elizabeth the Queen Mother. She in turn gave it to Queen Elizabeth II on her 18th birthday, and it has remained part of her personal collection. It features 16 graduated scrolls set with 739 brilliants and 149 baton diamonds. The tiara has previously been worn by high-profile women of the royal family, including Princess Margaret and Princess Anne. However, the last time it was seen out publicly was with Princess Anne in the 1970s.

The duchess was photographed wearing Queen Elizabeth II's fern brooch many times during her first official visit to New Zealand in April. The piece was originally given to the queen during her coronation world tour in 1953 and 1954. As what often happens with gifted items from subjects, the brooch was commissioned by a local Kiwi women's group that wanted to show appreciation for their queen. (The fern is an important New Zealand emblem.) The queen has worn it to many New Zealand-related functions, but Kate gets the very special distinction of being the first person to whom the Queen has loaned it out.

Source:

One of Kate's most used pieces of jewelry also has a very sentimental meaning to Prince William. Kate's engagement ring famously belonged to Princess Diana before William used it to propose to his longtime love. After they got privately engaged, Diana and Prince Charles selected the engagement ring from the official royal jeweler, Garrard, in February 1981. It consists of 14 solitaire diamonds and a 12-carat oval blue Ceylon sapphire set in 18-karat gold. It was notable at the time since it wasn't custom-made (which royal engagement rings traditionally are) and was actually part of Garrard's regular retail collection. The ring was given to Prince Harry after Diana passed, and he eventually gave it to William.

The duchess doesn't normally wear that much jewelry, but earlier this year, the queen reportedly asked that Kate be given more access to the royal jewels to give her a "princess-y" makeover. Enter the Nizam of Hyderabad necklace, which Kate wore during a visit to the National Portrait Gallery (where she serves as a patron) in February. The necklace was given to the queen by (who else?) the Nizam of Hyderabad, as a wedding present. He told the queen to pick out anything that she wanted from Cartier, and she selected this glittering number, which features a chain of 38 diamonds plus a center piece of 13 emerald-cut diamonds.