Brown Hue in G colour on White Setting

[Saver]

Hi,

The vendor notes "very light brown"

2.99-Carat Round Cut Diamond | Blue Nile AU

www.bluenile.com

but the video only shows a slight yellow tint, I understand that brown hues or even colour will be more noticable in the body. would you expect this is noticeable on a white setting and would be something to steer clear of if appearing colourless was a preference?

 

[MamaBee]

I’ve never seen a light brown undertone on a diamond still graded as a G. I have to admit I do see a brown undertone which I love..Most people like a yellow undertone...It was GIA graded as a G so I would think the undertone wouldn’t be noticeable or it would be graded differently...Hopefully someone with more knowledge than me can answer your question.

 

[stonehunter20]

same, i've never seen a G color stone has a brown hue?? that sounds strange to me. but noticed the stone is 2.99ct... super good value!!!

 

[monipod]

I can barely see any brown. Just some slight yellow undertone that makes the stone warmer than an F? If GIA didn't note it then it's negligible. I'd ask the vendor in case they made a mistake.

 

[Garry H (Cut Nut)]

The medium blue fluoro will wash away a lot of colour when the lighting is good enough to see the colour (except in strong LED lighting like in the video)

 

[OoohShiny]

That looks like it is cut really nicely!

 

[Texas Leaguer]

The medium blue fluoro will wash away a lot of colour when the lighting is good enough to see the colour (except in strong LED lighting like in the video)

The suggestion that medium fluorescence will ‘wash away’ brown color in a diamond has no basis in fact that I know of. All significant studies of blue fluorescence and appearance have been done on diamonds with varying levels of yellow. The concept is that since blue and yellow are complementary colors, that the blue wavelengths emitted during fluorescence can cancel some of yellow wavelengths.

Moreover it is not wise for a shopper to base a purchase decision on the belief that fluorescence, particularly in the lower intensities, will make a diamond look whiter than its color grade.

According to GIA’s study

“For the average observer, meant to represent the jewelry buying public, no systematic effects of blue fluorescence on the face-up appearance of the groups of diamonds were detected. Even experienced observers did not consistently agree on the effects of fluorescence from one stone to the next.”

Seeing a diamond glow under a black light is cool and magical. But even magic has its limits.

 

[Alexander33]

I don’t know if this helps but I got this from a Jaan Paul video these are all Gs with different undertones.

According to The video hues are not easily seen in all lighting

 

[Rockdiamond]

The medium blue fluoro will wash away a lot of colour when the lighting is good enough to see the colour (except in strong LED lighting like in the video)

Garry and I are in total agreement here.
Also- people’s ability to perceive color varies widely from person to person.
But even those with the greatest color sensitivity are affected by the lighting source.
Another point Garry brings up is the lighting on rotating videos. It’s nothing like what most people will be exposed to when actually viewing a diamond in real life.
In my experience virtually all “normal” lighting sources bright enough to to allow perception of subtle color differences will also “activate” fluorescent diamonds- to different degrees. But some show quite noticeable change.

 

[Garry H (Cut Nut)]

The suggestion that medium fluorescence will ‘wash away’ brown color in a diamond has no basis in fact that I know of. All significant studies of blue fluorescence and appearance have been done on diamonds with varying levels of yellow. The concept is that since blue and yellow are complementary colors, that the blue wavelengths emitted during fluorescence can cancel some of yellow wavelengths.

Moreover it is not wise for a shopper to base a purchase decision on the belief that fluorescence, particularly in the lower intensities, will make a diamond look whiter than its color grade.

According to GIA’s study

“For the average observer, meant to represent the jewelry buying public, no systematic effects of blue fluorescence on the face-up appearance of the groups of diamonds were detected. Even experienced observers did not consistently agree on the effects of fluorescence from one stone to the next.”

Seeing a diamond glow under a black light is cool and magical. But even magic has its limits.

I have friends with a chain of 20-30 stores who sell a lot of TLB's (Top Light Browns). They use some sort of mercury vapour or some flood lights in their mall store windows that pump out lots of UV because it whitens up their diamonds.

 

[Texas Leaguer]

I'm sure that's true. But that relates to fluorescence how?

I also know many people in the trade who have a general preference for top light brown over top light yellow, especially in smaller stones. But it has nothing to do with fluorescence.

Brown undertone probably gets a bit of a bad rap.

 

[Garry H (Cut Nut)]

I'm sure that's true. But that relates to fluorescence how?

D'oH?
They look whiter because the UV cancels the brown tint. Seriously Bryan??????

 

[Texas Leaguer]

So all the tlb stones you are referring to in your friends 20-30 stores are fluorescent?

 

[Garry H (Cut Nut)]

So all the tlb stones you are referring to in your friends 20-30 stores are fluorescent?

They are all Argyle and all argyle diamonds are blue fluorescent. Sorry, thought that was understood Bryan.

 

[Texas Leaguer]

That's quite amazing. Would love to see their showcases under a black light.

 

[Garry H (Cut Nut)]

That's quite amazing. Would love to see their showcases under a black light.

It would be cool. They deal with cutters who are Argyle sight holders because they also sell champagne diamonds. And since Argyle has been the 90% source of brown colored and tinted diamonds for 35 years there are Indian companies that exclusively polish Argyle material.
And BTW I posted an interview with Ewen Tyler the other day - if you love a good story listen to it!