Kristin Cavallari looks stunning as she poses in a gold bikini

Kristin Cavallari posed in a gold bikini for her new promotional photos for her jewelry line Uncommon James.

The blonde siren looked toned in the one-strap top and high-waisted bottoms as she added a colorful belt over a striped jacket while in front of a gold framed mirror.

The mother of three is launching a vintage inspired collection this week: 'ViNTAGE is here! So excited about this collection,' she said on Instagram.

The design maven was heavily made up with her hair down. Then she was shot from the back outdoors.

This comes after she told New You she stays slim because she is careful with what she eats.

'I am a very healthy eater. So, what does that mean? That means we’re organic as often as possible. Real food. I never look at fat or calories or anything on an ingredient label. I just read the actual ingredients, and I just want to make sure that I’m eating real food as close to its natural state as possible,' she said.

'I drink a ton of water,' the TV vet added.

'I work out five days a week and I lift weights, but I go quickly. It’s circuit training so that my heart rate is up. I’m a big believer in an infrared sauna, in a bath, in a mask, in a gratitude journal.'

And that fills her with joy. 

'I think all of those things play a role in overall happiness, and I think that happiness is really where beauty comes from. I think when you have that glow, it’s from here and here.

'I think it’s inner and it’s shining through and I think when you love yourself and you’re comfortable in your own skin, that’s what makes people be attracted to you and want that secret. It’s no secret. I think your mental health is a large part of that.'   

This comes after Kristin, 34, said she needs to work out only 45 minutes a day, four times a week - that works out to just three hours a week - to stay a stunning 120lbs at 5ft3in. 

The size two star told UsWeekly:'I lift weights,

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