The model, 25, took to Instagram on Monday to flaunt her giant wedding and engagement rings ... and a Cartier Love ring, which values for $3,850. In the picture, Ruby could also be seen wearing ...

He estimates that the ruby is about 2 carats and the diamond halo is 2.5 carats, making the entire engagement ring more than 4.5 carats altogether. E! reports the ring would retail for ...

Melbourne-based Moissanite Engagement Rings announces an expanded range of moissanite cuts, along with a lifetime warranty ...