Rare 2ct red diamond Argyle Everglow up for auction

[OoohShiny]

Just had a look at the Grisogono website - some serious work in some of those pieces!

 

[OoohShiny]

The necklace ? WWW

Is it me or is that (massive!) rock window-ing quite badly at 9:04?

I'm not massively impressed by the cut TBH - the middle looks like it's all-on or all-off, which is not as appealing to me as the emeralds that have steps that 'walk' up and down the stone as it rocks.

 

[valeria101]

The thing is so large, every window is a 'mirador' !

The image that remains with me - the close views of the skin, looking like light on water ...

 

[lambskin]

I am not in the trade so my knowledge is limited to my passion for diamonds over the last 50 plus years. I have watched jewelry trends come and go- in regard to settings, metal color and designers. I understand that some designers have used chocolate (or black diamonds) in trendy unique designs for years. I have also seen chocolate (or black) diamond jewelry advertised by national jewelry stores. But I do not recall seeing such stones offered to the masses in such quantities prior to the 1980s. Perhaps my assumption is flawed that chocolate, brown (or black) diamonds are not as rare as colorless, near colorless or fancy colored diamonds. I also assume (perhaps incorrectly) that brown and black diamonds come from more than one mine and thus are not rare. So if they were not used in significant quantities in history, what happened to these stones after they were mined. Were they cut, stock piled or used elsewhere?

 

[valeria101]

ctd.

RE.

The image that remains with me - the close views of the skin, looking like light on water ...

A larger picture of the uncut diamond - WWW

- if ever sculpture could do movement ! [... growth can - but crystal growers do not do this, much that I heard ?]

This one would not have taken magnification to appreciate, for once.

@diagem @EEFranklin

 

[valeria101]

Perhaps my assumption is flawed that chocolate, brown (or black) diamonds are not as rare as colorless, near colorless or fancy colored diamonds.

Somewhat in line with what is written on this thread, I'd be thinking that the coloured rough is simply not as often clean (gem quality) as the whiter (since colour implies more defects & riskier geological fates for the respective crystals etc) - which complicates the problem of rarity... to the point that I did not dare look into it ... (data Chore !)