Large diamonds with a gray tint - lighting?

schadenfreude

really
O.G.
Nov 13, 2007
3,637
94
44
I was at South Coast Plaza, that incredible Mecca of a mall in LA, for the first time a couple days ago. Of course that place has so many super high end big names like Cartier, Tiffany, etc. as well as jewelers I'd never heard of, like Nathan Alan. Naturally, all these places had their biggest and most spectacular diamonds in the display windows... some so huge and gorgeous I could barely breathe, for real! Anyway, many of the really huge diamonds had a notable gray tinge to them, but they were incredible, stunning! Admittedly, I've never seen diamonds that big IRL before. Is that gray tinge something that comes with size, or is it lighting? The smaller diamonds (you know, only 2 carats... :P) were bright white and colorless. I found the gray ones just spectacular! Can anyone shed any light on this, pun intended?
 

Swanky

Admin
Admin
O.G.
Jan 12, 2006
86,321
6,271
I would guess it was reflections. A lot of times the velvet display is a gray color.
 

chanel-girl

Cartier Love
Jun 24, 2007
1,699
9
My first thought is that maybe the color wasn't so great in the really large stones...Sometimes in bright jewelry store lighting stones that have a slight yellowish tint to them appear somewhat grayish or not a bright white. I noticed this at a very high end jewelry store in my area when I was looking at a pair of 3 ctw studs and they were a K in color and in bright lighting they had a slight gray tint.
 

guccikat

O.G.
Aug 2, 2007
369
3
it could be because the diamond is a poor cut, sometimes poorly cut diamonds ie:shallow cut or deep cut causes the light to reflect off the sides of the stone instead of the top (in which you will get the most brilliance), therefore, causing the stone to look darker in the middle.
 

slip

O.G.
Sep 15, 2006
1,170
215
Singapore
That's what I've read too that real diamonds have greyish/whitish tint when lights are being refracted. Only fake diamonds project rainbows. I'd love to own a big rock someday.
 

bellabird

Trying new things!
Sep 23, 2007
2,300
0
West Coast
Diamonds come in various colors, even black. My mother-in-law has diamonds that look like smokey topaz. I know they were expensive but they still look like topaz to me .