All eyes have been on the Duchess of Sussex in recent days as she and Prince Harry continue their four-day quasi-royal tour of Australia.

Now, the Daily Mail can reveal the hidden detail in Meghan’s jewellery collection as she paid a subtle tribute to her husband on the third day of their trip.

The Sussexes today joined an Aboriginal walking tour, before meeting young advocates involved in mental health engagement programme Batyr at Melbourne’s Swinburne University of Technology.

For her outing, Meghan, 44, wore a $40 white t-shirt with a red love heart that said ‘mama’ designed by her best friend Kelly McKee Zajfen while on Melbourne’s Scar Tree Walk. She completed her look with $169 blue jeans, a $599 trench coat and $298 trainers.

The Duchess then changed into a chic dress from Australian brand Friends with Frank, paired with tights and a Cartier love bracelet worth $7,950.

But it was her rings that really caught the attention of eagle-eyed royal fans. Meghan sported two constellation bands from Logan Hollowell, based in Los Angeles.

She wore the Virgo Diamond Constellation Ring, priced at £2,171, and the Leo Constellation Ring, worth £1,685, to represent her and Harry’s star signs.

The Duchess also owns two constellation necklaces from the same brand – one for Gemini, Lilibet’s birth sign, and another for Taurus, which is Archie’s.

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Meghan, 44, wore a $40 white t-shirt with a red love heart that said ‘mama’ designed by her best friend Kelly McKee Zajfen while on Melbourne’s Scar Tree Walk

All Meghan’s outfits from her tour continue to be uploaded to the OneOff website – described as the ‘Spotify of fashion’ – where the Duchess will take a percentage of any sales.

She has become a participant and investor in OneOff so she can promote the outfits she wears on her Australia tour.

At Melbourne’s Royal Children’s Hospital on Tuesday, Meghan wore a $1,250 ‘Priscilla’ dress from local designer Karen Gee, with $780 ‘Puffy Hearts’ stud earrings by Real Fine Studio and ‘Iridescent’ Christian Dior leather pumps.

Later at the Australian National Veterans Arts Museum, she had a $1,000 St Agni suede ‘Utility Cocoon Bomber’ jacket, an $890 suede ‘Column skirt’ by the same brand, a $220 ‘Annie’ top by PJ Femme and ‘Purist’ 105mm pointed-toe pumps by Aquazzura which are sold out in the US but cost £479 ($904) in the UK.

OneOff, which is based in Los Angeles, also features photos of Meghan from previous events and at her home with options to buy the clothing she is wearing.

Today, Harry and Meghan took part in Melbourne’s Scar Tree Walk, which connects traditional and contemporary Aboriginal cultures and the histories of the local Indigenous peoples of the Kulin nation.

A scar tree, also known as a canoe tree or shield tree, has had bark removed by Aboriginal Australians for the creation of bark canoes, shelters, weapons, tools, traps and containers.

Scar trees may also be created as a form of artistic and spiritual expression by some Aboriginal peoples, to mark places of significance such as burial sites, and provide a link to 60,000 years of continuous culture.

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The Duchess later changed into a chic dress from Australian brand Friends with Frank, paired with tights and a Cartier love bracelet worth $7,950

But it was her rings that really caught the attention of eagle-eyed royal fans. The Duchess sported two constellation bands from Logan Hollowell, based in Los Angeles

The walk was led by local Indigenous guides, beginning at the Koorie Heritage Trust in Melbourne’s Federation Square. Koorie is a term which refers to Indigenous people from Victoria and parts of New South Wales.

The walk follows the Birrarung (Yarra River) and meanders through Birrarung Wilam (river camp) Aboriginal art pieces and contemporary installations.

Joggers and cyclists looked stunned to see the Duke and Duchess strolling through one of the city’s most popular running routes along the banks of the Yarra River.

Following the walk, Harry and Meghan met young advocates involved in mental health engagement programme, Batyr, at Melbourne’s Swinburne University of Technology.

The Duchess of Sussex said she was ‘bullied and attacked’ every day for 10 years on social media and was ‘the most trolled person in the entire world’.

Speaking to a classroom of young people, Meghan said social media companies were ‘not incentivised to stop’.

‘And I can speak to that really personally, which is why I like to listen, because it rings true for me in a very real way.

‘For now, 10 years, every day for 10 years, I have been bullied and attacked. And I was the most trolled person in the entire world.’