idealscope feedback

[cryptik]

Hey all, I''m about to finalize a buy,
Here are the numbers,

Depth: 69.9 (is this too deep?)
Table: 57
Color: I
Clarity: SI 1 (made sure its eye clean)

Can someone who is good at analyzing the idealscope tell me what this idealscope means?

Thanks.

 

[Garry H (Cut Nut)]

It is pretty good for that shape stone

The depth % would be a lot less if the stone was measured from corner to corner

 

[cryptik]

Thanks Gary.

I''m looking at this diamond online. How can I find out if it has ''fire'' and ''scintillation''.

Or is that something I can only tell once I have it in my hand?

I appreciate the response.

 

[cryptik]

"The depth % would be a lot less if the stone was measured from corner to corner"

What do you mean by that.

Is the depth of 69.9% not measured that way?

Thanks.

 

[JulieN]

Date: 4/10/2008 1:06:01 PM
Author: cryptik
''The depth % would be a lot less if the stone was measured from corner to corner''

What do you mean by that.

Is the depth of 69.9% not measured that way?

Thanks.

As Garry said, IS looks pretty good.

Depth is fine. Depth is a proportion of depth/diameter in rounds, but depth/the long side in fancies. So a 70% round and a 70% fancy aren''t exactly the same. I''m much too lazy to explain this, read here: http://journal.pricescope.com/Articles/21/1/The-matter-of-depth-in-a-princess-cut.aspx

 

[cryptik]

Thank, that clarifies a whole lot.

However, is it possible to determine how much ''fire'' or ''scintillation'' a diamond gives off without ever looking at the real diamond but based on an idealscope?

Is fire a function of reflectivity or cut or both?

Thx

 

[JulieN]

uhhh...yes, sort of. it's all very high tech. It's just easier to remember that you're shooting for high crown height, high crown angle.

As to whether fire is a function of the material or the cut...it's both.