by Oceangirl » Jul 11, 2019 Hi all, I’m wondering about upgrading a small diamond I have to match another one I have that is slightly larger - with a view to using them as side stones for a three stone ring. I can see that the company I purchased the small diamond from has a diamond in the right size, but it’s an H colour and the one I’m trying to match is a J (with strong fluorescence). Would the colour difference be too much? We’re talking small diamonds around 0.4 carat. The centre stone in the ring will likely be a champagne/light brown diamond around 1.2 carat - in case that makes a difference?