Hello everyone,
A friend of mine purchased a blue diamond and had it put into a ring setting.
GIA report 2135051812

can someone take a look at his report and tell me what u think as to the purchase,

he also has a loose natuarl fancy pink-brown that is 1.11ctw

GIA report 51310511975
 he was offered 800.00 for it and was disappointed, what does everyone think? is the brown going to effect the vaslue like they are telling him in new york or was he being taken advantage of.

thank you for all your help everyone with this one, your knowlegde is appreciated

OMC is correct, pink-brown is brown, not pink. That is a HUGE factor, as far as pricing goes. With colored diamonds, little differences in color often translate into giant differences in value. Brown (and yellow) is(are) the most common of diamond colors, so their values are  relatively low on the diamond color scale and, certainly, not nearly as valued as more rare pink and blue, to name a few.

The good news is that your friend has GIA reports, so at least he knows exactly what he has in technical terms. That should keep negotiations relatively "concrete;" as opposed to a situation where he thinks he has pricey "pink" and a potential buyer insists he has very affordable "brown."

As OMC suggested, even with GIA reports, it is hard to know exactly how appealing to the eye these stones actually are, without examining the stones in person. Along with the information on a lab report, that "eyes-on" information – how a diamond "performs," contributes to pricing, especially with fancy colors.