Anyone in the market for a doorknob asscher?

[meely]

https://www.google.co.uk/amp/s/www.forbes.com/sites/anthonydemarco/2019/04/10/graff-unveils-worlds-largest-square-emerald-cut-diamond-at-302-37-carats/amp/

 

[OcnGypZ]

I wonder how the ASET looks. Probably not great as it was cut to maximize weight.

 

[OoohShiny]

@Dancing Fire's upgrade is here!!






I wish we knew the GIA report number - I want to see how many crown/pavilion steps it has, and what clarity it actually is. It looks like 3 crown steps in that close-up face-on picture, but I think only an expert like @Karl_K would be able to work out the pavilion steps!

You'd have to build a custom ASETscope for that beast


I'm intrigued by the last part of the article, though:

The GIA identified the Lesedi La Rona rough as part of an elite group of “super deep” diamonds formed three times deeper than most other diamonds. Rare emissaries of geological information, Graff donated fragments of the Lesedi La Rona to the Smithsonian Institute to help advance diamond research.

Do diamonds formed deeper underground have different atomic structures / internal graining/growth patterns??

 

[meely]

I wonder how the ASET looks. Probably not great as it was cut to maximize weight.

Possibly not I think it's size not sparkle that will be the thing on anyone's mind who gets a glimpse of this thing!

 

[meely]

@Dancing Fire's upgrade is here!!






I wish we knew the GIA report number - I want to see how many crown/pavilion steps it has, and what clarity it actually is. It looks like 3 crown steps in that close-up face-on picture, but I think only an expert like @Karl_K would be able to work out the pavilion steps!

You'd have to build a custom ASETscope for that beast


I'm intrigued by the last part of the article, though:



Do diamonds formed deeper underground have different atomic structures / internal graining/growth patterns??

Interesting, not heard of this before.

 

[OoohShiny]

I'm intrigued by the last part of the article, though:

The GIA identified the Lesedi La Rona rough as part of an elite group of “super deep” diamonds formed three times deeper than most other diamonds. Rare emissaries of geological information, Graff donated fragments of the Lesedi La Rona to the Smithsonian Institute to help advance diamond research.

Do diamonds formed deeper underground have different atomic structures / internal graining/growth patterns??

Interesting, not heard of this before.

Same here!

I'm wondering if perhaps one of the trade experts might be able to comment!

 

[Karl_K]

I wish we knew the GIA report number - I want to see how many crown/pavilion steps it has, and what clarity it actually is. It looks like 3 crown steps in that close-up face-on picture, but I think only an expert like @Karl_K would be able to work out the pavilion steps!

Hard to tell, but it is superbly cut with matching angles.
If I was designing a stone this big I would put lucky 8 pavilion steps on it.

 

[scarsmum]

The video is fun

https://www.graff.com/famous-diamonds/lesedi-la-rona/

 

[the_mother_thing]

Amazing & beautiful diamond!

But am I the only one who - when watching the video - winced at them holding the diamond with their bare hands and the idea of finger smudges all over that beauty?

 

[Austina]

I’d halo it

 

[clearfading]

And here I just want a small 6 or 7 carat one

Video was great!

 

[the_mother_thing]

I’d halo it

Why stop there ... make it a double!

 

[OoohShiny]

The video is fun

https://www.graff.com/famous-diamonds/lesedi-la-rona/

Cool to see the laser cutting at work, thank you for posting!

I'm not sure what the wording on the page is referring to, though, when they talk about the laser operator being a classically trained musician and cutting by ear?

Does the laser risk causing harmonic resonances that could potentially cause the stone to shatter? (We've all seen that Pink Panther film with the massive diamond, haven't we? )

 

[OoohShiny]

I'm intrigued by the last part of the article, though:


Do diamonds formed deeper underground have different atomic structures / internal graining/growth patterns??

Just coming back to this, I found some interesting articles on GIA.edu about these SuperDeep diamonds - interesting reading!

https://www.gia.edu/gems-gemology/winter-2018-how-do-diamonds-form-in-the-deep-earth

https://www.gia.edu/gems-gemology/spring-2019-how-old-are-diamonds-are-they-forever

 

[Dancing Fire]

@Dancing Fire's upgrade is here!!

It needs a recut into an Octavia.