Pictures to show the difference in 0.9 and 1 caret

[noleennoleen]

Is there a really big difference in a 0.9 caret and a 1 caret diamond? I know my boyfriend is going to propose soon (guilty of going snooping) and he has been given the choice of 0.9 with colour D and vvs2, whatever that means or going for a 1 caret but not as good quality. I've been trying to find images to show the difference. Personally I'll be glad of any ring but just curious

 

[kay1]

If you know the dimensions you can check on something like this:

http://www.diamdb.com/compare/

Carat is just the weight, some diamonds can be cut 'shallower' which means the height/width of a shallow 0.9 could be bigger than that of a normal 1.0

In any case the size difference in a like for like cut 0.9 vs 1.0 is about 0.1 to 0.2mm (a tenth or two tenths of a milimeter).

The thing is most people like to say 'thats a 1 carat diamond on my/her finger' so the price usually increases a lot at the 1 carat boundary. That's why its sometimes sensible to get a 0.9 or 0.95 with better colour, cut and clarity for the same price as a poor 1.0. Unless you know the specs of both diamonds its pretty hard to say which is actually better.