You can use the diamond search tool at the top of the page. EGL does not grade as stringenly as GIA/AGS so they will
not be as expensive as the equivalent GIA?/AGS stone. We usually recommend sticking with GIA/AGS.
Gathering from your posting history, you're looking for a 1 carat, D color, SI clarity diamond. What is your budget? Do you care about the integrity/consistency of the lab that graded the diamond? Are you comfortable purchasing online? If you post more information, maybe we can help you out.
ok here are some stats 6.28-6.25 x 4.02mm total depth 64.2 table width 62 crown height 15 pavilion depth 45 girdle slightly thick faceted polish very good symmetry very good culet none flurecent none d color si clarity 1.01 round brilliant . avg price should be?
I am not in the trade and do not know how to determine an appropriate value on a stone, but I can tell you what I would pay for that particular stone. NOTHING! It is most likely graded loosely and is poorly cut...you can do much better no matter how good of a deal you think you are getting.
In other words, you'd be paying a 1 carat price for a stone that looks like a .90. I wouldn't buy it unless it was the price of a .50 ct. stone and I could have it recut.
http://ideal-scope.com/1.using_reference_chart.asp A stone that is too deep will also have poor light return. See the link I posted. So you are getting a stone that is too small by proportion and also will look small because of the light return-- plus it will be dark.
Here are some cheat sheet specifications for round brilliant specs/numbers ( PRINT THIS OUT AND TAKE THIS WITH YOU WHEN SHOPPING IN PERSON):
depth - 60 - 62% - although my personal preference is to allow up to 62.4%
table - 54- 57%
crown angle - 34- 35 degrees
pavilion angle - 40.6- 41 degrees
girdle - avoid extremes, look for thin to slightly thick, thin to medium etc
polish and symmetry - very good and above
note - with crown and pavilion angles at the shallower ends ( CA 34- PA 40.6) and steeper ( CA 35- PA 41) check to make sure these angles complement in that particular diamond - eyeballs, Idealscope, trusted vendor input - check as appropriate!
Also, configurations depend on each other. A little give here can still work with a little take there.
With that said, here''s a "Cliff''s Notes" for staying near Tolkowsky/ideal angles with GIA reports (their numbers are rounded): A crown angle of 34.0, 34.5 or 35.0 is usually safe with a 40.8 pavilion angle. If pavilion angle = 40.6 lean toward a 34.5-35.0 crown. If pavilion angle = 41 lean toward a 34.0-34.5 crown.
GIA "EX" in cut is great at its heart, but it ranges a bit wider than some people prefer, particularly in deep combinations (pavilion > 41 with crown > 35).