Brilliance Jewels is completely wrong. There was a period of time-perhaps 80's? 90's? when Cartier was marking the Love bracelets and other jewelry and marking it in all Caps. (I know it's a little blurry, but please see the first two photos.) I have several pieces, all authentic, with this kind of lettering.
Any jeweler worth his salt, will tell you that the difficulty in authenticating Cartier, is that there has been NO consistency in the markings, either in the font, placement and the type of identifying information provided-- all will say Cartier, have a serial number, but they way they do so, and other info provided such as Cartier NY, Cartier France, and other makers marks can differ. The jewelry below is all authentic. As you can see, the markings are all different.
One thing about counterfeiters, they're not copying the older style of markings--they're copying the new marks and the new marks are not stamped (such as the third photo), instead they're laser inscribed.