Why YOU MUST ALWAYS measure your "Princess-Cut" Diamonds - 16 diagrams & photos

This is one of the most serious requests I will explore. Why must the "Princess-Cut" diamond be carefully measured always before setting the stone?

 Every stone you find will be fraught with multiple widths and lengths. The measurements might be off by as much as 1-2 mm's at best. This is due to the stones being 'cut by hand'.   Only 'perfectly cut stones' being shaped automatically by CAD designed computers, or polished by lapidary machines. These will be great to set by any Diamond Setter.

In cases like this 'precious stone', the facets are equal on all of the stones' sides.

  After taking measurements throughout the stone at the Girdles. It's time to decide where the widest edge is.

 Then at the 'long edge' I'd paint lines on the table Facet, as further shown below. These lines will be as a guide where the length of finger will be.

  I found that there was 11.69 mm's (width) and then 12.02 mm's (for the length).

 This photo now shows why taking measurements is so essential prior to setting a "Princess-Cut" stone. If I reversed the location, the stone would look 'off balanced'. 

 Thankfully these measurements are now correct on all 4 sides. This will be a true "Princess-Cut" stone with no problems for deciding which side to use.

 Here is a sample of measurements on a 'square stone' there could be 4 measurements. Lets see what must 'we' do in this case and then to make this stone look good in the setting.

 If you examine a gemstone with multiple sides, let's now look at a 'parallelogram'. That is a stone that has 2 'long sides' and 2 'narrow widths'. What happens if the stone is set more wide than long?

 The answer is to first measure in millimeters and see where the "long" is on the stone.

The long angle MUST ALWAYS BE INLINE WITH THE FINGER.

This is just what we're aiming for. (Please excuse the exaggeration of measurements).

 But what happens if the RED edge is not 'long',  the diamond will look too wide. ALL OF THE RECTANGULAR DIAMOND FACETS SHOULD BE INLINE WITH THE LENGTH OF FINGER.

 BTW. As an example, lets look at these Girdle facets. The Facets are so very thick, that I'd shy away from setting this stone because of the thickness of the stone in general.

 

 Why would I hesitate in using this particular stone? There are 'corner facets' missing and if any added pressure is applied on them, "Good-Bye stone"!

I measured this stone as a good example and look at what I found? Two measurements with one (nearly perfect) square stone.

 I didn't plan or arrange the numbers for this display, but this is what can happen at your setting bench.

 BTW. There will be little problems with Diamonds. With semi-precious stones the measurements need to taken at every section of the Princess-cut stone.

 Is this time consuming? In my estimation, nothing is lost if the many measurements are accurate and then the ring will look absolutely 100% GREAT.