How to avoid blue nuance?

[MagpieMama]

I'm hoping someone more knowledgable can chime in on this topic - please correct if I have something wrong!

From what I understand blue nuance in lab stones is a result of excess boron in the crystal,
boron being added during the growing process of lab diamonds to bind nitrogen and prevent a yellow/brown color that can result from excess nitrogen.
Basically adding boron makes it easier/faster to grow a whiter diamond.

Could you avoid any chance of blue nuance by considering only Type IIA diamonds?
Since that is the purest crystal, wouldn't it be free of the excess boron that causes the blue nuance? And free of excess nitrogen that cause yellow/brown or that matter?

I know lab diamond grading that denotes Type IIA vs Type IIB (rather than just generally Type II) is getting harder to come by, just wondering if this would be an effective filtering method if possible?

I've seen an earth mined, internally flawless, Type IIA, D color diamond and it was absolutely GORGEOUS and utterly BLINDING.
Just wondering if that look is theoretically replicable in a lab stone....

Alright experts - hit me with some knowledge!

 

[Kim N]

Theoretically yes, you can avoid blue nuance by only considering Type IIa diamonds. If the labs would be more consistent with noting Type IIa vs IIb rather than just Type II, this would be the best filtering method. I'm finding it rarer and rarer, though, and with all the different photography set-ups, it can sometimes be quite difficult to look for blue nuance in the vendor videos.

 

[MagpieMama]

Theoretically yes, you can avoid blue nuance by only considering Type IIa diamonds. If the labs would be more consistent with noting Type IIa vs IIb rather than just Type II, this would be the best filtering method. I'm finding it rarer and rarer, though, and with all the different photography set-ups, it can sometimes be quite difficult to look for blue nuance in the vendor videos.

Thank you!
Seems like I’m understanding the chemistry correctly at least.

I also agree it is nearly impossible to tell from photos/videos - in person (with good light!) is really the only way I can tell.

Not that blue nuance can’t be captured in photograph, just that it is too easy to conceal by manipulating photographs.