Looking for good quality round

[193v]

I recently began looking for a good round stone. My first experience with a vendor is not going as I had hoped. Woundering if anyone can offer some feedback. I was shown 5 stones with Sarin info provided for only two. I requested Sarin info for the others but was told that there are fees involved in getting the info and the vendor does not usually do it. He said they are all perfect because the AGS stats are all 0. The two that I have info on are as follows:

1.
Round Brilliant ($18K)
2.10 carat
color G
clarity SI1
table 56
depth 61.4%
crown 34.1
pavil 41.3
cutlet .2

2.
Round Brilliant ($15K)
1.83 carat
color G
clarity VS2
table 56
depth 62.1%
crown 35.5
pavil 41.1
cutlet .3

What do you think of these stones? the vendors comments?

Much apprecited!!

 

[valeria101]

If you have the table sizes, then HCA (the "Cut Adviser" under "Toold" on top of this page) could help make sense of those numbers for starters.

Have you seen these two ?

1.8 seems a better price point than slightly over 2 carat... and then, how does clarity look in that SI1 ?

How about size (diameters) and price ?

 

[193v]

vsually good but cut advisor results are not impressive.

 

[valeria101]

Date: 1/28/2005 11:13:8 AM
Author: 193v
vsually good but cut advisor results are not impressive.

I see... wel, I have not checked if those are AGS0 proportions, but even if they are: AGS is changing the old standrad and some combinations of crown and pavilion angles of the "old" AGS0 don't work as well anyway.

If you were not given the opportunity to compare these with a top cut (= meaning H&A and/or tops Iscope regardless) than, well, most diamonds look nice by themselves. You may never know if these really are as good as the respective ideal cut rounds, unless these stones get measured on the same scale (H&A viewer and IdealScope that is). Does it matter ?

How about price ? That's as good reasos as any to live with less than "perfect" parameters. As long as the stones look nice to you, have the size you'd want and there is no way to get a satisfactory ideal cut with comparable price tag... why not.

Just IMO, of course.



PS: these have GIA certs, no ?

If there are more stones to choose from and you can line them up, this sounds like one case for the Iscope to solve. One of those may be less than getting Sarin reports[/url] )

 

[aljdewey]

Date: 1/28/2005 10:39:28 AM
Author:193v

I requested Sarin info for the others but was told that there are fees involved in getting the info and the vendor does not usually do it. He said they are all perfect because the AGS stats are all 0.

What do you think of these stones? the vendors comments?

Hi, 193V: I think you're right to be a bit concerned here.

I don't see how he can make the claim "all the stats are AGS 0". In order to know that, he'd have to have the figures you're requesting, and those would come from the AGS grading report or from a Sarin.

Secondly, look at the first stone you listed....it does not have AGS0 cut proportions. The pavilion angle is 41.3, which is beyond the upper limit of AGS 0 (40.15-41.2).

Based on these two things, I wouldn't assign a great deal of credence to the vendor's comments. At best, he's embellishing, and at worst, he's misleading.

The second stone does have AGS0 proportions, but they aren't a particularly great combination. The stats shows crown of 35.5 and pavilion of 41.1. The proportions of this stone begin to run into the steep/deep combo territory.

AGS0 crown angles run from 33.7-35.8; pavilion angles run 40.15-41.2. Think of crown and pavilion angles as yin-yang....they are relational. The higher the crown angle is in this range, the lower the pavilion angle needs to be to "balance" it. Conversely, the lower the crown angle, the higher the pavilion angle. In this stone's case, it is on the high end of the crown AND the high end of the pavilion, which tends to go into steep/deep territory.

If I were spending *this* amount of money on a stone, I'd expect the data I ask for. It would irritate me to have someone quibble of the cost of providing Sarin reports on a purchase of this magnitude. I could understand it if you were asking him to run 10 stones, but it seems reasonable to ask for a couple.

There are several vendors here who provide that data on *many* of their stones. You may want to consider some of them.

You did say, though, that they looked nice to you visually. While these may not be the creme-de-la-creme, they appear to be just-below top-cut, which is still a very nice stone and better than most out there. There's no reason not to choose one of them....but just make sure you are paying an appropriate price. The price should reflect that it's not a TOP cut, but just below that.

Good luck.

 

[193v]

Thank you both for the feedback! I''ve have an appoitment with another jewler on Monday.