Buying rings as push presents are starting to become a bit of a tradition in the royal family. When baby Archie was born last year, Prince Harry got Meghan a very special ring.
The gold band is adorned with conflict-free diamonds, and Prince Harry helped jewellery Lorraine Schwartz design it. He even asked her to add three birthstones, representing himself, his wife and his son, on the underside of the ring, presumably so they can be kept secret.
But it seems like he might have picked this sweet idea up from his big brother, Prince William. It is no secret that Kate Middleton wears three rings on her wedding finger.
The third and final one is an eternity ring which was a push present from Prince William after Prince George was born in 2013.
It is by British designer Annoushka, which the Duchess of Cambridge is a fan of, frequently wearing the brand's Baroque Pearl Earrings. Prince William had someone come into to their Chelsea boutique on Cadogan Gardens to purchase the ring as a gift (you can buy it yourself below).
It is called the Eclipse ring, and is made in 18ct white gold and hand set with 0.23 ct sparkling white diamonds.
On the website, the ring is described as 'oozing everyday elegance and can be worn alone, alongside your engagement and wedding bands or styled within a stack. Designed with a high polish finish, the eternity ring is an Annoushka classic that can be passed down through generations.'
It is lovely to think that one day it might be passed on to Princess Charlotte, or even Prince George or Prince Louis' wives, should they decide to get married.
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Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.
Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).
Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at MoneySavingExpert.com, sourcing the best deals for everything from restaurants to designer sales.
However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.
Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.
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