Help please~ Is this 1 ct diamond any good??

[eleana]

Hi guys, I'm looking for a 1ct stone to upgrade my engagement ring. I prefer the stone looks bigger, but I also want it to be at least G SI. My current stone is 0.5ct F SI.

Can anyone please check if this diamond any good?

I got the number from GIA report. They don't have any image of the diamond.

Round Brilliant 1.18ct
Cut: Excellent
Colour: G
Clarity: SI1
Polish: Excellent
Symmetry: Excellent
Girdle: Medium
Culet: None
Fluorescence: None
Depth %: 60.0%
Table %: 59%

Measurements: 6.84 x 6.87 x 4.11 mm

I got HCA 1.1 (Prety good).


Price is around $7500.

Here is the inclusions from GIA:

I've ask them to check if it's eyeclean. They said they will get back to me soon.
But they can't offer me anymore info.

Many thanks!

 

[Christina...]

I'm assuming that they can't offer you ideal scope images of the stone either? Does the vendor have a good return policy? A 60/60 diamond has a different visual appearance than a more Tolk ideal cut does. Some prefer them because they tend to have a slightly larger spread than a traditional Tolk, and you mentioned that you wanted it to look as large as possible but don't want to sacrifice light performance, so it may be a good choice for you. Twinning wisps are often a good inclusion to have because they tend to be very faint and hard to detect, however they can also impact light performance. This particular stone is an SI1 so I'd guess that won't be an issue, but I'm not an expert so I'm not really sure. The crystals look to be prongable if they do happen to be visible. I think it looks like it has potential but I would want to see an idealscope image. You can purchase one for about $25 and view it for yourself.

As far as size goes, this stone should look considerably larger than your current stone.

 

[eleana]

Hi Christina,
Thanks for your advice. I found this stone on Bluenile. But I live in Australia, not sure if I have to pay the shipping and insurance to ship it back to US.

Can you give me some link or tell me what is a "60/60 diamond" and what is a "Tolk ideal cut"? I don't want to sacrifice light performance, is this stone light performing not good?

I called them but the guy on the phone said they don't do images.I want to see the idealscope as well. $25 is good, do you know where can I purchase the image?

Regarding 'crystals look to be prongable', does it mean when I set the stone in 6 prongs solitaire, it'd be covered and become invisible?
Sorry I'm new to the whole diamond thing.

Thanks for your advise again. Very informative

 

[eleana]

One more question, will this stone show fish-eye??

 

[sakari_8]

This stone seems to be good as the Inclusion type is Twinning Wisp, its hard to spot twinning wisp and has minimal affect on the stone, Since you are upgrading this stone 1ct is the good size, I think stone may or may not be eyeclean, I would suggest to go with VS2 stone
that would guarantee you that stone is eye clean, I checked some stones, I would advise to check the link below:

https://www.pricescope.com/diamond-search-results/

I think you may find some stones better than the one's you have seen already

 

[Christina...]

Hi Christina,
Thanks for your advice. I found this stone on Bluenile. But I live in Australia, not sure if I have to pay the shipping and insurance to ship it back to US.

Can you give me some link or tell me what is a "60/60 diamond" and what is a "Tolk ideal cut"? I don't want to sacrifice light performance, is this stone light performing not good?

I called them but the guy on the phone said they don't do images.I want to see the idealscope as well. $25 is good, do you know where can I purchase the image?

Regarding 'crystals look to be prongable', does it mean when I set the stone in 6 prongs solitaire, it'd be covered and become invisible?
Sorry I'm new to the whole diamond thing.

Thanks for your advise again. Very informative

I believe that BN requires that you pay for return shipping. Being out of the country may complicate things for you as well because you will also have to pay duty on the stone, which can get messy if you buy and return a few. Keep in mind that when BN determines that a stone is eye clean, they are simply calling the dealer that holds the stone and asking their opinion. Of course the dealer wants to sell you the stone, so his idea of eye clean may not be the same as yours. It will be very important that you be specific about what you consider eye clean since it varies somewhat. Typically eye clean is face up from normal viewing distances. If you want the stone to be eye clean from less the 6 inches, 3 inches, from the side, in all lighting, you need to let them know this.

Yes, it looks to me that the crystal if visible would be able to be covered by a prong making it invisible in it's setting. I honestly don't think that the twinning wisps are going to affect the stones performance or cause any durability issues, however I was hoping that others with more knowledge would chime in with their opinions. Typically they are a very good inclusion to have.

Here are a few links about 60/60's and Tolk cuts, and one about idealscope.

https://www.pricescope.com/wiki/diamonds/60-60-proportioned-diamond

https://www.pricescope.com/wiki/diamonds/tolkowsky-ideal-cut-diamond

http://www.ideal-scope.com/resellers.asp

No worries about fish eye. Your proportions look good and the HCA would have given you a warning if this was a possiblility. Here's an another article for you.
https://www.pricescope.com/wiki/diamonds/diamond-cut-fish-eye-effect

Have you considered James Allen? They have photos of all of their stones and can offer idealscope images for you. White Flash, Good Old Gold and Brian Gavin Diamonds all can as well.


edit: sorry, I forgot to address your light performance question. A 60/60 stone generally has more white light return than it does colored light. A traditional Tolk cut will have a balance of both white and colored light. I prefer a stone that has a majority of colored light so I look specifically for stones that have small tables and high crowns. It's really a matter of preferences, one isn't better than another.

 

[eleana]

Hi Christina, thank you for posting back to me. I'm reading the links you send to me and learning all the stuff regarding diamonds.
It's very interesting and also very overwhelming.

I will definately contact Bluenile and ask about the definition of their eye-clean.
Regarding the refund, they said I need to pay 2% on the insurance when sending it back, which will be about $150. But it's still much fussy. Much prefer to get a right one at the beginning.

I have a look the James Allen, but can't find any stone this size with this sort of spread. My only concern is how is the light performace of the stone. It seems that GIA rating is not as strict as AGS. The stone qualify as EX cut in GIA, but I check 'AGS and GIA: Cut Comparison Charts' ([URL='https://www.pricescope.com/community/threads/ags-and-gia-cut-comparison-charts.41793/']https://www.pricescope.com/community/threads/ags-and-gia-cut-comparison-charts.41793/[/URL]), the stone just felt outside the AGS cut 0.

I will check the White Flash, Brian Gavin Diamonds and Good Old Gold today

Edit:
Just saw your update about the light performace. It certainly helps a lot. I'm not actually sure whether I prefer white or color lights. Maybe I should check out the local jewerly shop. Thanks for you help

 

[Christina...]

After I posted last night I went back and looked at the proportions of your stone and I actually think that it has a lot of potential. The crown isn't as shallow as many 60/60 types. Typically the shallower the crown the more white light, but your crown/pav angles are more like a Tolk at 34.5/40.6. This should give you a nice blend of both colored and white light. The table is falling just outside of what many PSers would consider ideal (54-5, but since you are looking for maximum spread this is good for you and is by no means too large. I wish that BN offered additional information, but based on what we know, this one might be worth taking a look at. Have they told you yet if it is eye clean? Is the stone on hold for you?

 

[eleana]

Hi Christina, thanks for the more info. They confirmed with me that the stone is eye clean. It's currently on hold for me. It will be released tomorrow thought. I'm actually looking at some other stones as well. Very overwhelming.

 

[Christina...]

This stone would actually be a candidate for AGS0. The thread that you were comparing was from 2006 before AGS changed it's cut criteria. Take a look at the new charts since 2008 I believe. http://www.octonus.com/oct/mss/gia-agspgs.phtml

 

[eleana]

Hi Christina, thank you so much for posting the new charts for me. You are the only one here giving me suggestions. I'm not commited to the stone yet, since I'm thinking if I should get one at least F colour.