Find your diamond
Find your jewelry
shape
carat
color
clarity

GIA tour and "out of round" question

Status
Not open for further replies. Please create a new topic or request for this thread to be opened.

lucy

Rough_Rock
Joined
Jun 2, 2002
Messages
55
someone before mentioned a stone being "out-of-round" meaning the dimensions were really off say 5.60x5.90. For a 3 carat stone-what difference would be considered "out of round"? personally my moms looks a little lopsided to me and the paperwork showed 9.49x9.77-5.66 maybe?
also for those of you who have visited the GIA carlsbad, ca-what is there to see? whats in the "museum"? and was it cool? or boring?
 

niceice

Brilliant_Rock
Joined
Jan 29, 2003
Messages
1,792
We consider anything more than 10/100'ths to be "out of round" and actually prefer a tighter range...
 

lucy

Rough_Rock
Joined
Jun 2, 2002
Messages
55
eeeeek fractions!!
so 9.49x9.51 =no problem-maybe even excellent?
9.49 x9.59 hedging on bad right?
the 1st number after the decimal is the 10's and the second to the right of the decimal the 100's right?
would the GIA report on a out of round diamond list it as just a good in symmetry or worse?
thank you!
 

Mara

Super_Ideal_Rock
Joined
Oct 30, 2002
Messages
31,003
According to fiance...this stone has 2% variation which is not that much...but that seems so low considering the spread of the min/max diam as you posted is huge at .28mm! Must be relative to the very large size of stone? Odd.
 

Giangi

Ideal_Rock
Joined
Jan 23, 2003
Messages
2,530
If my brain is working correctly, variation should be ~3%.
 

Richard Sherwood

Ideal_Rock
Joined
Sep 25, 2002
Messages
4,924
I did some profiling with the DiamCalc software, and it considers anything with more than a 2% difference as "out of round".

The diamond listed above has a difference of 2.95%, 0.28 mm, which would definitely put it in the out-of-round category.

This is not to say that the stone is not beautiful, which it might be. I've seen plenty of gorgeous out-of-round stones. It just fails to "technically" measure up in that particular aspect.
 
Status
Not open for further replies. Please create a new topic or request for this thread to be opened.
Be a part of the community It's free, join today!
    Radiant Ruby Cluster Ring
    Radiant Ruby Cluster Ring
    Recutting And Resetting A Heirloom
    Recutting And Resetting A Heirloom
    Princess Diana: Timeless Jewelry Every Woman Should Own
    Princess Diana: Timeless Jewelry Every Woman Should Own

Need Something Special?

Get a quote from multiple trusted and vetted jewelers.

Holloway Cut Advisor



Diamond Eye Candy

Click to view full-size image.
Top