Scintillation

[spartan183]

What exactly is scintillation and how important is it?

 

[Cehrabehra]

A flashlight doesn''t have scintillation - it is in constant ON. A diamond goes on and off and on and off and it twinkles. Yeah, its pretty important!!

 

[echelon6]

I dont think its too important, more of a preference thing

Whats more important is light return. If you have a stone that doesn''t leak light, more or less scintillation only determines how that light is dispersed. The more scint, the smaller the flashes of light, and the more frequent the flashes. Its a preference thing, since the total light return of a stone remains constant.

 

[whatmeworry]

Use sparkle as another word if you like. Very important quality in diamonds, for me.

 

[strmrdr]

scintillation is dynamic fire + dynamic contrast.
or in other words the play of light as a diamond is moved.
its very important without it a diamond would be well like a mirror.

 

[diagem]

Date: 7/15/2007 12:45:36 AM
Author: echelon6
I dont think its too important, more of a preference thing

Whats more important is light return. If you have a stone that doesn''t leak light, more or less scintillation only determines how that light is dispersed. The more scint, the smaller the flashes of light, and the more frequent the flashes. Its a preference thing, since the total light return of a stone remains constant.

???

 

[Paul-Antwerp]

Scintillation is the mother of brilliance and fire; you could say it is the most important aspect of light performance, but also the most difficult to quantify. Because of that difficulty, many people resort to brilliance and fire only.

Like Storm says, it is the sparkles, that one observes as the stone, the observer or the light source moves. These sparkles are observable virtual facets.

If we are talking light return only, each virtual facet returns light in a slightly different colour or tone, and with movement, each one of these virtual facets changes. So, the observable scintillation (sparkles) can be white (brilliance) or coloured light (fire).

Live long,

 

[surfgirl]

Scintillation is the mother of brilliance and fire; you could say it is the most important aspect of light performance, but also the most difficult to quantify. Because of that difficulty, many people resort to brilliance and fire only.

This was perfectly said, and I love the first sentence - the mother of brilliance and fire! I was going to say it''s the quality that makes one''s diamond "twinkle" - or not. It''s very important!

That said, would one say that a cut such as an EC or asscher has less scintillation since a stepped cut reacts differently than a faceted cut like a round or a radiant? Just curious...

 

[strmrdr]

Date: 7/15/2007 12:28:36 PM
Author: surfgirl

Scintillation is the mother of brilliance and fire; you could say it is the most important aspect of light performance, but also the most difficult to quantify. Because of that difficulty, many people resort to brilliance and fire only.

This was perfectly said, and I love the first sentence - the mother of brilliance and fire! I was going to say it''s the quality that makes one''s diamond ''twinkle'' - or not. It''s very important!

That said, would one say that a cut such as an EC or asscher has less scintillation since a stepped cut reacts differently than a faceted cut like a round or a radiant? Just curious...

less small but more large for the SE/EC and because they are bigger they are fewer in number for any given area of diamond.
Which is why ags broke it down into small med and large events.
How do you define less, total area? number? size? intensity? I dunno :}

 

[shminbabe]

Date: 7/15/2007 12:39:35 PM
Author: strmrdr

Date: 7/15/2007 12:28:36 PM
Author: surfgirl

Scintillation is the mother of brilliance and fire; you could say it is the most important aspect of light performance, but also the most difficult to quantify. Because of that difficulty, many people resort to brilliance and fire only.

This was perfectly said, and I love the first sentence - the mother of brilliance and fire! I was going to say it''s the quality that makes one''s diamond ''twinkle'' - or not. It''s very important!

That said, would one say that a cut such as an EC or asscher has less scintillation since a stepped cut reacts differently than a faceted cut like a round or a radiant? Just curious...

less small but more large for the SE/EC and because they are bigger they are fewer in number for any given area of diamond.
Which is why ags broke it down into small med and large events.
How do you define less, total area? number? size? intensity? I dunno :}

I want to ask you, strmrdr, to explain this a little more, if you don''t mind?? I don''t understand your answer

I am about to look at an EC for a possible purchase and I''m really concerned that I make the right choice and I want scintillation, sparkles, brilliance, whatever you call it, this diamond must have movement and life!

All the numbers look right...it''s just matter of calling it in and seeing for myself. Can you help me understand what I''m looking at when it comes?

jeannie

 

[strmrdr]

Date: 7/16/2007 1:20:32 AM
Author: shminbabe


I want to ask you, strmrdr, to explain this a little more, if you don't mind?? I don't understand your answer

I am about to look at an EC for a possible purchase and I'm really concerned that I make the right choice and I want scintillation, sparkles, brilliance, whatever you call it, this diamond must have movement and life!

All the numbers look right...it's just matter of calling it in and seeing for myself. Can you help me understand what I'm looking at when it comes?

jeannie

basicaly AGS breaks down scint(flashes of light) into 3 sizes small med and large.
A princess cut will be mostly small events, A well cut round mostly small and med(some large for larger stones), SE/EC mostly large.
If you think about how a EC looks with the large pavilion facets it makes sence that the flashes will be big.
There is a thread around here with more info,,,,
Here is the thread..Im not seeing the princess and SE pictures I think John may have only shown them on WFTV.
https://www.pricescope.com/community/threads/agsl-scintillation-studies.63707/

note: the sizes of the events are not scaled to the size of the diamond which is why the 9mm tolk has large events and the other one shown doesnt.


edit: yes Ill be happy to help with the EC.