[sarah88]

Hi, I would like to know what is fir? and what should the depth be for a good diamond?
I see that the search results for diamonds on this website comes up with a diamond depth percentage of between 54% and 65%. What is better？A higher percentage or lower? How is it measured? I did a search for a 1 carat round diamond. Some even have "none" for cutlet.
How is that possible to have no cutlet?
Your response would be appreciated.

This post has been edited by sarah88: 22 July 2010 - 08:14 AM

[davidelevi]

Hi Sarah,

flr = fluorescence

A decent range of depths for rounds is 58 - 62%, but it's possible to find very nice stones outside this range, so don't be too dogmatic about it. Depth is the ratio between the height of the stone and its diameter, and there isn't a "better" or "worse". Generally, the smaller the depth the larger the stone will look for the same weight, but a "proper" depth works harmoniously with the other proportions to produce a bright and sparkly diamond. If all one is looking for is size, glass is much cheaper and comes in much larger chunks

It's culet, cutlets are best left in the kitchen, and it's the technical term for the small facet on the "bottom" of the stone (in fact culet means something like "little bottom" in French). If all the facets on the bottom converge to a point, the diamond has no culet (or "pointed culet")

This post has been edited by davidelevi: 22 July 2010 - 10:34 AM