Your diamond is stunning. I am a big fan of diamond cut, and I actually researched and looked at a lot of diamonds when I was looking at upgrading my diamond stud earrings (I got side tracked, so that's fallen lower on my priority list).
Of all the brands/cuts I saw, CBI was absolutely the most gorgeous. The way they cut to maximize sparkle and fire is amazing. I actually had other "perfectly cut" diamonds with me to compare it to the CBI, and the CBI won. Your diamond looks gorgeous in the photo, and I am sure it's even more stunning in real life. In case you are not aware, when I met with the CBI person, he told me they also cut stones that are for the luxury brand houses.
Your stone is just beautiful! Great choice! Congratulations!