In an interview with The Daily Telegraph's Stellar magazine, she said of her husband-to-be: "Blake is the greatest guy. I look back over the past few years and look at pictures of when I first started kissing Blake, and I look the best I've ever looked in my life in those photos.
WATCH: Gwen Stefani shares glimpse inside her home
"Love must look good on me. I feel like that does show through – it really does."
Elsewhere in the interview, the mom-of-three spoke about her approach to beauty and ageing, and said: "People talking about my aging is a compliment, I guess. I'm kind of obsessed with how I'm aging, too.
Gwen and Blake started dating in 2015
"It's really hard for everyone to age and have to face life," Gwen, 51, continued. "Especially for females and people who have been in the spotlight it can be daunting, but you tackle it by just trying to be the most beautiful version of yourself inside and out."
Gwen and Blake, 44, split their time between a beautiful £13million home in LA and Blake’s Oklahoma country house. The No Doubt star recently opened up to Ellen DeGeneres about ranch life during lockdown, sharing: "I was cooking, I was cleaning, doing laundry, home schooling."
The couple with Gwen's eldest sons, Kingston and Zuma
The family – including Gwen's three sons, Kingston, 14, Zuma, 12, and seven-year-old Apollo – did find time for some fun, too, embracing the wildlife on their doorstep.
"We found a baby armadillo and we found baby hawks," she explained. The star even took on gardening tasks by chopping down trees, reporting: “Everything you can think of, we did it."
The couple announced their engagement in October
The vast 1300-acre estate, named Ten Point Ranch, features a number of ponds, as well as a horse barn. Inside, the home has four bedrooms, and fans have seen small glimpses of its cosy interior via Instagram.
It's been reported that Gwen and Blake may well tie the knot at the sprawling ranch; notably, their engagement announcement photo was taken inside a chapel that's supposedly located on the site.
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