GIA VG V.S. EX

[anthony187]

Hello everyone. I have taken all of your advise and will stay away from EGL. I understand that cut is the most important thing when considering fire and brillance. I have been dealing with some online vendors and looking at different stones. Is there a significant differance between an GIA Excellent cut and a GIA Very Good? Same for Ex polish and symmetry v.s. VG in both? Diamonds are scoring under 2 on the HCA average around 1.2. Will the cut make a big diff?

 

[John P]

If you can post more details from the grading reports (or link to them) we may be able to explain why the different grades were assigned. Table, Depth, Crown Angle, Pavilion Angle, Lower Halves, Stars, Girdle and anything in the comments section will help.

 

[dbsdiamonds]

I think the simple answer is if you can get an EX/EX for similar pricing as VG/VG or not dramatically more and the inclusion schematics are comparable or better then you should get the highest graded stone possible on paper.

Marty
CEO/Pres
Diamond Brokerage Service, Inc
www.dbsdiamonds.com

 

[John P]

Date: 9/11/2008 4:14:13 PM
Author: dbsdiamonds

I think the simple answer is if you can get an EX/EX for similar pricing as VG/VG or not dramatically more and the inclusion schematics are comparable or better then you should get the highest graded stone possible on paper.

Hi Marty,

I think there are some notable exceptions in GIA''s metric. For example, I''d turn away a number of combos at the steep-deep end of GIA EX (anything near 41.6/35.0 for example) in favor of either a VG near 40.6/33.5 with smart minors - or certain combos that receive VG for minimal painting. More info would help.

 

[anthony187]

John I dont actually have the certs but I have the numbers here is a link to the gia cert verification. The numbers of the two certs are

17450450

16878617 they are both 1.50 carats

Again thank you all so much.

 

[JulieN]

Thick girdle gives it Very Good.

 

[dbsdiamonds]

Oh, absolutely. No question about it...

Marty
CEO/Pres
Diamond Brokerage Service Inc
www.dbsdiamonds.com

 

[anthony187]

So they are about 50 dollars different. witch would you choose?

 

[John P]

Date: 9/11/2008 4:41:06 PM
Author: anthony187
John I dont actually have the certs but I have the numbers here is a link to the gia cert verification. The numbers of the two certs are

17450450

16878617 they are both 1.50 carats

Again thank you all so much.

You're welcome.

#17450450 = 56, 61, 40.6, 35.0, 80, 50 tn-m (7.38mm) EX
#16878617 = 56, 62, 41.0, 34.5, 80, 50 m-tk (7.36mm) VG

The portion of the girdle that runs to thick on the second diamond is what resulted in the reduction to VG, but I'd wager that portion is minimal (perhaps a natural?) since the face up spread isn't visibly influenced.

Performance-wise there is likely to be very little, if any, notable difference between the two. Of course GIA rounds some of their numbers. An ideal-scope or ASET image is useful for verifying what the data is telling us, allows us to see the level of cut precision (some of the numbers above are averages of many facets) and shows lower half length more accurately which, in the case of the 40.6 PA, I like to know. But that's nitpicky.

Do you know the details of their respective SI1 grades? Do you have plots, and someone who is looking at them for you (if you have not seen them yourself)?

 

[anthony187]

I am waiting on the original certs to be sent to me so that I can look at the plots. I want to have one of them sent to an appraiser so that I can see them in person. Both are around 8500. Does that sound about right? I don''t want to pay for both of them to be appraiesed. Any opinions on witch would be the better diamond. I also see the dems are a little bigger on one will it show bigger by a significant amount?

 

[John P]

Date: 9/11/2008 6:54:01 PM
Author: anthony187
I am waiting on the original certs to be sent to me so that I can look at the plots. I want to have one of them sent to an appraiser so that I can see them in person. Both are around 8500. Does that sound about right? I don''t want to pay for both of them to be appraiesed. Any opinions on witch would be the better diamond. I also see the dems are a little bigger on one will it show bigger by a significant amount?

When you have the grading reports post their details. If one is completely eye-clean and the other has visible inclusions that could make the decision easy if a clean stone is a priority for you. The eye-clean stone may be more expensive.

To the human eye they will have identical face-up spread. "Better" for me would depend on cut precision (which is not graded) but not everyone worries about it and it can only be judged if you have images.

By the numbers they''re in the same performance class though one is EX and another VG. The price is in-line with similar GIA-graded diamonds. I''d expect a slight discount for the VG cut, which could be a great bargain since the feature that knocked it down makes no visible difference in performance or spread. That could be the $50 difference, or it could just as easily have to do with the level of eye-cleanliness.

 

[John P]

Date: 9/11/2008 6:54:01 PM
Author: anthony187
I am waiting on the original certs to be sent to me so that I can look at the plots. I want to have one of them sent to an appraiser so that I can see them in person. Both are around 8500. Does that sound about right? I don't want to pay for both of them to be appraiesed. Any opinions on witch would be the better diamond. I also see the dems are a little bigger on one will it show bigger by a significant amount?

I wanted to add: You could consider finding an appraiser who will examine both diamonds and give his opinion on which is best - for a small fee - and just have that one fully appraised. One of the best reasons to select an independent expert is to answer questions like the ones you are asking in this thread. A professional with the diamonds in hand can give you meaningful and decisive answers.

 

[anthony187]

An eye clean stone is definetly a huge priority! I will post the details as soon as I get them.

Thanks again

 

[anthony187]

I just found out that the EX cut diamond is eyeclean. That it has a feather on the gridle but very hard to see and can be covered by a prong. So is it a good buy?

 

[Lorelei]

Date: 9/12/2008 4:16:21 PM
Author: anthony187
I just found out that the EX cut diamond is eyeclean. That it has a feather on the gridle but very hard to see and can be covered by a prong. So is it a good buy?

Looks like it could be a good stone, ask the vendor for an Idealscope image if possible.

 

[anthony187]

I asked but they don''t have an ideal scope image.