My daughter was the lucky recipient of this ring on her birthday from her boyfriend.  The wedding is in the works and she was thrilled beyond belief.  I had spoken to a person who went to school to study gems and she said get the most ct you can afford because when they are this size the rating of the diamond really can't be seen.  She was right, this is beautiful.  I can see if you are getting large diamonds to be very concerned about the ratings but for this size it is a great buy!  The 10K gold she told me is actually stronger then the 14K.  Bottom line - this ring is lovely.