Alicia Vikander attends the Volez, Voguez, Voyagez - Louis Vuitton Exhibition Opening on October 26, 2017 in New York City. (Photo by Daniel Zuchnik/WireImage)
Alicia Vikander attends the 'Euphoria' premiere during the 13th Zurich Film Festival on September 29, 2017 in Zurich, Switzerland. The Zurich Film Festival 2017 will take place from September 28 until October 8. (Photo by Andreas Rentz/Getty Images)
Alicia Vikander attends the Volez, Voguez, Voyagez - Louis Vuitton Exhibition Opening on October 26, 2017 in New York City. (Photo by Nicholas Hunt/Getty Images)
Alicia Vikander attends 'Submergence' premiere during 65th San Sebastian Film Festival on September 22, 2017 in San Sebastian, Spain. (Photo by Carlos Alvarez/Getty Images)
Actress Alicia Vikander attends 'Submergence' photocall during the 65th San Sebastian International Film Festival on September 22, 2017 in San Sebastian, Spain. (Photo by Carlos Alvarez/Getty Images)
Newlywed Alicia Vikander shows off her wedding ring as she arrives in Miami. Picture: Splash News
Michael Fassbender and Alicia Vikander put on loved-up display at the beach in Ibiza. Picture: Splash News
Tom (Fassbender) and Isabel (Vikander) shine as the central double act
Alicia Vikander attends the Volez, Voguez, Voyagez - Louis Vuitton Exhibition Opening on October 26, 2017 in New York City. (Photo by Nicholas Hunt/Getty Images)
3.00ct Solitaire Diamond Platinum Ring for €75,000 at Brereton Jewellers
Now that their secret is out, Alicia Vikander and Michael Fassbender want the world to know they're happily married.
The Irish actor, from Killarney, Co Kerry (40) and the Oscar-winning actress (29) from Sweden, wed in lavish fashion at the eco-friendly five star Agroturismo Can Mart in Ibiza earlier this month and celebrated their honeymoon with a mini-tour of Italy. But it's back to business for the power couple and Alicia has been proudly flashing her ring around.
Newlywed Alicia Vikander shows off her wedding ring as she arrives in Miami. Picture: Splash News
On Wednesday, she was pictured at Miami airport, sporting a very new, eye-catching accessory and on Thursday night, she strategically posed to show off the diamond, in stark contrast to their hush-hush engagement, when she opted against wearing a ring in order to avoid tipping off the media about their upcoming nuptials.
But that rock is a sight to behold. It's a classic style, reflective of her understated elegance and her refined personal style that won her a lucrative contract with French fashion house Louis Vuitton.
"It’s a classic engagement ring: it is a single diamond with a round stone. There’s no elaborate design, it’s just nice and classic; timeless is how I would describe it," gemologist Paul Brereton of John Brereton Jewellers tells TheVow.ie.
"It's a classic solitaire diamond ring and in keeping with the size of her finger. He could have bought her any diamond that he wanted, but they chose one that suits her finger."
Alicia Vikander attends the Volez, Voguez, Voyagez - Louis Vuitton Exhibition Opening on October 26, 2017 in New York City. (Photo by Daniel Zuchnik/WireImage)
Alicia Vikander attends the Volez, Voguez, Voyagez - Louis Vuitton Exhibition Opening on October 26, 2017 in New York City. (Photo by Daniel Zuchnik/WireImage)
Brereton, who is also president of the Irish Antique Dealers Association, estimates the ring is between a two carat to a 2.5 carat, and as expected, it has a movie star price tag.
This is where it can be a large skew – you can buy one for €20,000, I’m sure he went for a very high grade of stone and that can be up to about 60k. If he got it from one of the big jewellery houses like Cartier, you can double that. So it just depends who made it," he explained.
3.00ct Solitaire Diamond Platinum Ring for €75,000 at Brereton Jewellers
"A nice stone starts off at €20,000 and then you go to the high grade, that’s where you’re getting a jump in price. If it’s a rare white stone with no inclusions, it brings it up to €60,00 plus."
Vikander also went her own way and chose to have two bands surrounding her engagement ring.
Alicia Vikander and Michael Fassbender on honeymoon
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"When you look at the pictures, the engagement ring itself with the single stone and it looks like she’s wearing a band one on either side, they’d be her wedding bands," Brereton explains.
"That’s something that’s popular in America, they like the balance of having a ring on either side. If they click in, it can be quite chunky. Now, possibly, I’m only guessing, but it appears to be two separate rings on each side."
The classic stone is exactly as its name implies, a time-honoured tradition that brides of all generations consistently love.
"It’s very popular. It’s all about budgets. A stone of that size doesn't need anything else. She can go with a classic because the stone is doing all the talking. If she put an elaborate setting around that, it would look heavy around the finger and that’s not for everyday wear, then it becomes more of a dress ring.
Alicia Vikander and Michael Fassbender arrive for the UK premiere of "The Light Between Oceans" at The Curzon Mayfair on October 19, 2016 in London, England. (Photo by Karwai Tang/WireImage)
Alicia Vikander and Michael Fassbender arrive for the UK premiere of "The Light Between Oceans" at The Curzon Mayfair on October 19, 2016 in London, England. (Photo by Karwai Tang/WireImage)
"There are other fashions that come into play, but it’s one that has been popular as long I’ve been in the business."
And he has a helpful word of advice when it comes to ring shopping during the early days of your own engagement - think long-term.
"With engagement rings, it’s something you’re going to want to love with a very long time," he says.
"If it’s a bit quirky, you can get tired of quirky, so you’re trying to get people to strike a balance. It’s a very emotional purchase. If you buy something and get tired of it, they’re reluctant to change it and regret their purchase."