Find your diamond
Find your jewelry
shape
carat
color
clarity

Nail Head vs. Fish Eye????

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

curious

Rough_Rock
Joined
Jan 2, 2002
Messages
45
Please clafify a NAIL HEAD EFFECT and a FISH EYE EFFECT.

I have thoroughly read the tutorial and am still confused.

If possible, can you show some pictures of diamonds with these effects.

Muchas Gracias!!!

:wavey:
 

pricescope

Ideal_Rock
Joined
Dec 31, 1999
Messages
8,266
Hi Curious, :)

Fisheye: reflection of the girdle is visible under the table in the face-up position. It happens when diamond has shallow pavilion and large table:

Nailhead: table of the diamond appears very dark. This happens when pavilion is too deep.






[/u][/u]
 

curious

Rough_Rock
Joined
Jan 2, 2002
Messages
45
Thanks for the great pics...they helped a lot.

Why do round stones seem to have a black dot in the middle where all the facets come together? Is this a natural effect?

:twirl:
 

Garry H (Cut Nut)

Super_Ideal_Rock
Trade
Joined
Aug 15, 2000
Messages
14,899
It also depends on the size of your head (he he he).
Actually it does, because the rays perpendicular to the table in a diamond with a 45 degree pavilion angle go right back to where they came.
A nailhead shows you a picture of your head as seen from the inside of the diamond.
A big dark head person with a big black hair style gets a worse nailhead than a petite blonde.
Life is funny don't you think?
We talk about the diamonds, but the observer and the environment is also a critical factor.
 
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!

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