posted on Jul, 5 2013 @ 08:58 AM
My wife has been in the diamond business for 8 years. As far as I know there is no diamond pricing guide. As others said, they are based on
appraisal value at the time. Some cuts can go up in value at whatever given time because of public want for them, such as European cuts being the
current trend and they are on an uptick in price. The highest value diamonds are based on grading from GIA or EGL specs.
Is there a particular diamond you are looking to have appraised or just looking for overall market on them. If overall market, they typically go up
in value every couple weeks because only a limited amount of a certain quality are released every so often from the large holders.