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 why do people use the phrase the stone faces up white?...
P:  7/1/2004 2:44:17 PM  
Dancing Fire
Dancing Fire

Ideal Rock
Total Posts: 10,218
Last Post: 11/21/2009
Member Since: 4/3/2004
 
 		shouldn't it be faces up clear? like the color of water. to me white is like the color of milk, does this make sense?

 


it is always harder to find a "mind clean" stone than a eye clean stone.
Posted:  7/1/2004 2:44:17 PM

 There are 3 replies to this message.  There are 3 replies on this page.
P: 7/1/2004 3:01:32 PM
Greg
Greg

Rough Rock
Total Posts: 66
Last Post: 12/22/2004
Member Since: 6/9/2004
 
 		White light contains the continuous range of colors in the spectrum. When a diamond faces up white, it's a reference to light return...not color. When a diamond looks yellow, it is absorbing some of the blue wavelength of white light that enters it.

...at least I think that's the case.

Posted:  7/1/2004 3:01:32 PM
P: 7/1/2004 11:19:01 PM
Magnum
Magnum

Cut Rock
Total Posts: 342
Last Post: 7/28/2004
Member Since: 3/26/2004
 
 		If it were clear, that would mean all the light would be going through it like a piece of glass. The reason ideal cut stones face up "whiter" (or maybe it's more silver-white) is because they are so efficient at reflecting light, of which most happens to be white light, so the white light that is reflected is so intense that it masks whatever slight yellow body color the diamond has. That's why you can see the yellow better from the bottom, because you are not being "blinded" by reflected light, and are able to pick up the body color of the diamond.

Posted:  7/1/2004 11:19:01 PM
P: 7/1/2004 11:31:07 PM
valeria101
valeria101

Ideal Rock
Total Posts: 14,048
Last Post: 4/30/2006
Member Since: 8/29/2003
 
 		Make that "colorless" - I do not know of too many places that sell fancy white diamonds (the milk-white ones like THIS). And the occasional hazy thing gets the right note (EXAMPLE !!!!!)

I think this has something to do with the way diamodns are graded for color: culet-up that is. The ever so slight shades get lost in the sparkle face-up if lucky - or so the respective phrase says.


Ana "The greatest experts are only as good as the sum total of what they have seen." [Souren Melikian]
Posted:  7/1/2004 11:31:07 PM

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