Hi Purseforum!
Just a quick update, he proposed the past weekend! I left it up to him to choose between the two and he chose Cartier, because I was honestly just right on the fence between the two! He said he chose Cartier because I have more red boxes in my storage than blue so he said it was an obvious choice

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Thank you for your help and input during my journey, it was so helpful to hear thoughts from everyone
Cartier 1895 1.80 D VVS2 on a size 48 (US 4.5) finger