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- Dec 17, 2008
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- 27,735
Its hard to see what's going on on that copy.
Can you feel it on the surface?
Im definitely not an expert but looking at the GIA report it doesn’t look like there are any black crystal inclusions so I don’t think that’s what that is? This is crazy but could something have gotten stuck in it when setting? Or is it a reflection from the setting?
Hi! sorry, you're having this issue.
If there's a cup under the stone, it's going to make the black spot more visible...and harder to clean
Took it back to the jeweler and they confirmed it's a carbon spot. I got the "consider it a character of the diamond" and "it's not that visible to the naked eye".
Have to say I'm pretty disappointed. They are going to show it to their craftsman to see if anything can be done, but nothing likely.
I don't think I can actually go about changing out the stone since it's all paid-up, but am wondering if I should ask about that...
Sorry, a bit out of my element here, what do you mean by cup?
The inclusions report key doesn’t seem to show any crystals - just feathers, clouds, and extra facets. So why is OP seeing a carbon spot? Can crystals / carbon spots be present without being on the key?
A lot of rings made for yellow diamonds use a "cup" under the stone. THe reason is to increase the appearance of yellow in the stone.
Here's one we did years ago- it's got a large hole in it to allow light to pass through, and to facilitate cleaning.
We've pretty much stopped using them entirely- but a lot of the rings we see from other manufacturers have either much smaller holes or no hole at all.
Unfortunately, what happens is the gunk gets under there, and you can't clean it.
The gunk, on the back side of a Yellow diamond, in a closed cup will highlight an imperfection.
If there's a cup, it might be possible to remove and that might help a little....
Have an appraiser check it is the same stones as the report please.
I'd be surprised if it wasn't the diamond in the GIA report given I got it from a really reputable store. But maybe worth looking into. Would you recommend anyone specifically in the NYC area?
It's virtually impossible to plot the imperfections in a diamond in a 2dimensional plot.
Many times a plot looks horrible and the stone is eye clean.
In other cases, the plot looks great, but whoa! A tiny crystal is in just the right spot ( in 3 dimensions) to become visible.
This ^. Plotting a 3D object in 2D is hard (math) and why any stone really, really needs to be seen in person and/or with good videos, if possible, to know what you’re getting. The OP did that, just a general concept for new buyers.
For the original poster, did the original setting have a cup or an arch under the stone that might have helped obscure the spot. That said, it looks as if it is DEAD centEd - looks a bit like a culet which if you have to have a carbon spot, that’s not a bad spot.
When the ring was in the original setting, it may have had a cup, I'm not sure? But when I first saw it in its new setting, it did not have a cup and I didn't see the spot, although I may have just missed it.
The jeweler has since told me it's a small cloud (pinpoints grouped together) and is now looking into potential options like laser drilling.
Would a cup help obscure the carbon spot?