I agree about the “ears” as well. I’m attaching a photo of my 0.17 in YG, which appears at least 1mm smaller than the 0.17 in YG just a few posts up. It’s amazing how much variability there is.
Thank you Julezah. I just purchased my necklace a few days ago, and was told I would receive my certificate in the mail in a couple weeks. Thanks for your input; you're right in regards to the bezel. I've also noticed the "ears" on either side of the bezel look different on each person's necklace. Mine are barely noticeable.