Celebrity Engagement Ring Pictures: Rachel Zoe's Engagement Ring Pictures

Looks like a cushion-cut, bezel-set diamond, obviously in a halo setting. I'd estimate the center stone is around six carats, given that her hands are probably teeny-tiny. Since she and Rog have been married for ages, I guessed that this ring was an upgrade—and I was right. It looks like her first ring was a considerably smaller emerald-cut diamond with baguette side stones.

But wait! There's an in-between ring too. It seems she started wearing this ring—a cushion-cut stone (I think) in a split-shank halo setting—around April of 2011. By fall of 2012, she was on Ring No. 3. (That stone may have been reset for the latest ring.)

Thoughts on Rachel Zoe's many engagement rings? Which is your favorite?