Does gray mean light leakage?

[MrsT]

I recently viewed an AGS0 Ideal cut diamond and another AGS000 at two franchise type mall stores. Can someone explain what is causing the following effect:

These stones had the most movement (scintilation)I have seen in all my search so far.
I could easily say it was like looking at a fireworks display. Fire and scinitilation were blinding which I loved. I could almost say they were too busy!

But, I think both stones were lacking in the brightness category. My reason for this is that when I viewed the stones in my lap and looked down they seemed to look like deep gray pools with a lot of sparkle/bling going on inside. The gray seemed to encompass the whole stone. For some reason I don''t like to see gray as the main color of a stone. I would rather see a mixture of white/gray/darkgray/black, and flashes of rainbow colors in othe words: a well balanced stone with good contrast.

When I observe a stone and it looks gray in jewelry store lighting does this mean it has light leakage, or, is it a problem with measurements, or is it normal and I''m just obsessing? Maybe it''s just the type of lighting in the store. This point is confusing me a little. Can someone help?

Here are the details I have of these two stones: Both Round Brilliant Cuts

A) Color:G/SI1 AGSIdeal0 - Table:54 - Depth:61.0 - CrownA:34.3% - PavA:41.0% - Culet:pointed
measurements: 8.20 x 8.22 x 5.01

B)Color: E/SI1 AGS Table:56 - Depth:60.8 - CrownA: 34.7 - PavA:40.8

What piece of the pie explains why the overall appearance of a stone is bright white or gray?

Thanks!
Mrs. T

 

[JulieN]

if it was a "fireworks display," it's the lighting.

take it into flourescent lighting (no halogens) and see if it's still gray.

 

[diamondseeker2006]

In my experience trying to look at diamonds in jewelery stores, it was pretty much a waste of time due to the lighting. Nowhere in your real life will you have lighting like that. The only way to tell about a diamond is to take it home and try it in different lighting environments. But be sure they have a no-questions-asked full refund policy!

 

[MrsT]

Have there been any discussions on PS regarding sparkle and scintilation in various light conditions?
Is actually buying the stone and taking it home the best way to know how a diamond will perform?
I know shaded outdoor lighting is not the best for seeing sparkle in a stone. At least most of the diamonds I see outside are pretty much flat.
They have not looked gray but they haven''t had much sparkle in that lighting either.

Can I expect a good cut to sparkle in all kinds of light? How good of a cut must the diamond be to perform well in all types of lighting?

Thanks for helping with such silly questions, but I can''t help myself.

Mrs.T

 

[Ellen]

Mrs. T, type in scintillation/sparkle in the search box. You''ll get a whole bunch of threads on it, and hopefully some answers!

 

[^]

Garry''s video in the conservatory shows this effect quite well, which often happens, I gather, when a stone is in bright direct light. The fire increases but the brightness naturally decreases. Did it look like this?

If so, it''s natural.

^

 

[Garry H (Cut Nut)]

thanks ^

there is another current thread on the board and many others too - especially about diamonds in sunlight and various sores with very high ceilings so the lights are a long way away (pinpoint)

try this https://www.pricescope.com/community/threads/sparkle-and-lighting.47928/