You cracked me up Ame!!! Imaging you doing that in Tiffany store?! Lol!! But seriously why don't the jeweler offer these tools onsite since it's such a big purchase after all. We need to know what we are actually getting!
Price wise, it costs 7k to jump up to 1ct from .8ct, but only 3k more to 1.2 ct from 1ct. Size wise, .82ct and 1ct look very similar, so to me it's not worth the money. I will either go with .82ct or 1.21ct. Is it worth10k difference? I don't know. But bigger is always more tempting!
I think I will pull the trigger this weekend. We are also considering the matching band. This set will be my alternative set to the original. So exciting!