Questions about these BGD pics

[puravida]

With this one, why does that little triangle appear under the table?

 

[puravida]

What can I learn from the following:

 

[puravida]

Is this exactly what an Idealscope pic for a RB should look like?

 

[puravida]

bump? anyone?

i''m thinking that these are great stones anyway but just wondering if there is anything to be learned form these images.

 

[jet2ks]

Date: 1/14/2010 7:37:45 PM
Author:puravida
With this one, why does that little triangle appear under the table?

That is most likely the part of the pavillion main facet reflecting something black, probably the camera. It is the same thing that is causing the arrows to be black in the photo. The angle is just right to have that bit of reflection. Usually the arrows in a diamond are a silvery color, it is only when something dark is at the right focal distance that they turn black.

As far as the IS images, they are both great--beautifully cut stones. Did you get a chance to read the link about IS in your other thread?

 

[Dreamer_D]

Date: 1/14/2010 9:49:37 PM
Author: jet2ks

Date: 1/14/2010 7:37:45 PM
Author:puravida
With this one, why does that little triangle appear under the table?

That is most likely the part of the pavillion main facet reflecting something black, probably the camera. It is the same thing that is causing the arrows to be black in the photo. The angle is just right to have that bit of reflection. Usually the arrows in a diamond are a silvery color, it is only when something dark is at the right focal distance that they turn black.

As far as the IS images, they are both great--beautifully cut stones. Did you get a chance to read the link about IS in your other thread?

Yup yup yuppers.

In real life you don''t see black in RBs, it is a trick of the camera. Maybe grey at the darkest.

 

[puravida]

Thanks for the confirmation

jet: yes I did read the article and thanks for reminding me bc I came up with a question after reading something about fire in that article.

so i understood that smaller tables will give more fire. and the article also states that high crowns give more fire.

does a smaller table automatically mean a higher crown?

and what does smallER table refer to? smaller than....what?

lastly, is fire a personal preferance or is it desireable n general to have a smaller table thus mroe fire?

 

[Bella_mezzo]

that's a beautiful stone. I love BGDs stones and his photography skills are awesome

It's like professional photoshoots for the finished jewelry.

 

[jet2ks]

Date: 1/14/2010 10:12:08 PM
Author: puravida
Thanks for the confirmation

jet: yes I did read the article and thanks for reminding me bc I came up with a question after reading something about fire in that article.

so i understood that smaller tables will give more fire. and the article also states that high crowns give more fire.

does a smaller table automatically mean a higher crown? No, but a higher crown with good angles will result in a smaller table. You could have a high crown and large table, but it would mean very steep angles and poor performance. You could also have a smaller table and low crown, but that results in shallow angles, poor performance and durability issues.

and what does smallER table refer to? smaller than....what? You can find round brilliants with tables in the low to mid 50''s up to the mid 60''s. I personally would term smaller as 56 and under

lastly, is fire a personal preferance or is it desireable n general to have a smaller table thus mroe fire? Personal preference. Some people like the fiery look, others prefer a larger table and more brilliance (white light return). A diamond cut in between will have a nice balance

 

[puravida]

Does the Tolkowsy Ideal cut fall in between and give a good balance of fire and brilliance? Is that what is ideal about the TIC?

 

[jet2ks]

Yes, diamonds cut in what is considered to be Tolkowsky Ideal Cut proportions tend to be balanced stones. If you are using the cut adviser tool, it will break down stones into Tolkowsky Ideal Cut, Fiery Ideal Cut and Brilliant Ideal Cut--ideal being a term relating more to overall performance rather than any one specific type. In reality the differences are pretty subtle, unless you have viewed a lot of diamonds or are comparing side by side.

 

[Lorelei]

Just wanted to say thats a beautiful diamond you have there Puravida! The images look great and the triangle does look like a reflection of an arrow tip, nothing to worry about.