40 of the most expensive celebrity engagement rings of all time
From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity ...
Circular Ring 2 unveiled at CES – and it's the end of plastic sizing kits for smart rings
Circular's new smart ring, the Ring 2, has an FDA-cleared AFib detection algorithm It can be sized using your smartphone, with no need for a plastic sizing kit Battery life runs for up to eight days, ...