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Does gray mean light leakage?

P: 7/13/2006 11:13:01 AM
Mrs.T Cut Rock Total Posts: 131 Last Post: 9/23/2008 Member Since: 6/28/2006	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
Posted: 7/13/2006 11:13:01 AM

There are 6 replies to this message. There are 6 replies on this page.

P: 7/13/2006 4:18:18 PM
JulieN Ideal Rock Total Posts: 7,145 Last Post: 11/22/2009 Member Since: 7/25/2005	if it was a "fireworks display," it's the lighting. take it into flourescent lighting (no halogens) and see if it's still gray.
Posted: 7/13/2006 4:18:18 PM

P: 7/13/2006 4:46:53 PM
diamondseeker2006 Ideal Rock Total Posts: 17,609 Last Post: 11/18/2009 Member Since: 1/11/2006	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! ~~~ When in doubt...don't.~~~
Posted: 7/13/2006 4:46:53 PM

P: 7/13/2006 9:09:33 PM
Mrs.T Cut Rock Total Posts: 131 Last Post: 9/23/2008 Member Since: 6/28/2006	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
Posted: 7/13/2006 9:09:33 PM

P: 7/13/2006 9:18:50 PM
Ellen Ideal Rock Total Posts: 22,894 Last Post: 11/6/2009 Member Since: 1/13/2006	Mrs. T, type in scintillation/sparkle in the search box. You'll get a whole bunch of threads on it, and hopefully some answers! ~~~~~~~~~~~~~~~~ "It is also important for the State to inculcate in its subjects an aversion to any 'conspiracy theory of history' for a search for 'conspiracies' means a search for motives and an attribution of responsibility for historical misdeeds." -Murray N. Rothbard, in The Anatomy of the State John Swinton [1829-1901] Chief Editorial Writer of the New York Times (Considered "the Dean of his Profession" by his peers), when asked to toast an 'Independent Press' in a gathering at the National Press Club, circa 1880 "There is no such thing in America as an independent press unless it is in the country towns. You know it, and I know it. There is not one of you who dare express an honest opinion. If you express it you know beforehand that it would never appear in print. I am paid... for keeping my honest opinions out of the paper I am connected with. Others of you are paid similar salaries for doing similar things.... The business of the New York journalist is to distort the truth, to lie outright, to pervert, to vilify, to fawn at the feet of Mammon, and sell his country and race for his daily bread, or for what is about the same thing, his salary. You know this, and I know it and what foolery to be toasting an 'independent press.' We are tools, and the vassals of rich men behind the scenes. We are jumping-jacks. They pull the strings and we dance. Our time, our talents, our lives, our possibilities, all are the property of other men. We are intellectual prostitutes."
Posted: 7/13/2006 9:18:50 PM

P: 7/13/2006 9:38:30 PM
^ Rough Rock Total Posts: 91 Last Post: 8/15/2009 Member Since: 5/9/2006	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. ^
Posted: 7/13/2006 9:38:30 PM

P: 7/13/2006 9:57:31 PM
Garry H (Cut Nut) Ideal Rock Total Posts: 11,580 Last Post: 11/23/2009 Member Since: 8/16/2000	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 http://www.pricescope.com/idealbb/view.asp?topicID=47928 Garry Holloway FGAA DipDT HCA and Ideal-scope developer http://www.ideal-scope.com and http://www.HollowayDiamonds.com.au
Posted: 7/13/2006 9:57:31 PM

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