Measuring for Strain

[pyramid]

When a diamond is checked for strain is it the size and position of the strain in the diamond which counts in the same way feathers do?

What I am asking is although the diamond has strain in one part of the diamond would someone like Rockdoc still give the diamond its bill of health or would it not pass if there is any strain in the diamond at all?

 

[Garry H (Cut Nut)]

We had a diamond chip last week while being resized. There was no visible strain under x-ed polars.

 

[RockDoc]

Date: 12/15/2004 5:25:37 PM
Author:pyramid
When a diamond is checked for strain is it the size and position of the strain in the diamond which counts in the same way feathers do?

What I am asking is although the diamond has strain in one part of the diamond would someone like Rockdoc still give the diamond its bill of health or would it not pass if there is any strain in the diamond at all?

Each stone is an individual.the location and color of the strain matters. A great percentage of diamonds have strain ( 40-50%) most of it does not appear to be a durability concern - but since the pricing doesn''t vary, why pick one that has a chance of a problem?

Most stones don''t have serious strain - but there are some that do.

Just to note, unless the stone has intense red strain leading to its edge or in the grainlines, I don''t make the decision of not to purchase. I simply report the facts that I see, substanciate the report with photographs, and at that point its up to the consumer to make the deciision.

Rockdoc

 

[Garry H (Cut Nut)]

Roc have you kept track of damage to diamonds that had anomolous double refraction, or crespondingly - those without?

 

[pyramid]

Thanks Rockdoc.

 

[pyramid]

https://www.pricescope.com/community/threads/strain-finally-a-scientific-approach-to-the-phenom.10395/=


found the above topic on this

 

[pyramid]

Edited reply as just read notes with that picture.

 

[pyramid]

As Garry asked, is there any new information/findings from stones you have seen about strain Rockdoc?