Just purchased a diamond and the cut advisor rates it as a 5.1. The stone is AGS Ideal 000 for Polish, Sym and Prop. Color =I, Clarity= SI2, Carat=.797 also Table is 56%, Crown angle is 35.4, Pavilion angle is 41.1 Cutlet is pointed Girdle is Faceted at 1.2% to 1.7 %

Cut advisor says to purchase only if price is a concern. I bought it for the AGS Ideal not price.Also it says it is polish = VG along with medium girdle. Why does AGS say IDEAL and advisor is different? Is this a good buy? I can still return it at this time. Purchase price was $2464.00

This diamond has a steep/deep angle combination-one of the worst AGS0 cut grade combinations. If you read the tutorial here you will learn about why the AGS 0 cut grade is too broad and can mislead consumers into thinking that any diamond with a 0 cut grade is going to be beautiful and worth the price premium.

I would return it and start over.

Sorry, but I hope this helps.

What should I be aware of about returning the diamond, of course insurance of the value. I am nervous about sending it back through the mail.

The combination of the steep crown and deep pavilion angles cause partial light leakage. Could you see the dark area under the table of your stone?

As for the price, it is not bad except unfortunate combination of crown and pavilion angles.

Here is an example of the close stone rated *excellent*:

Brand name Hearts and Arrows "A Cut Above":

http://nchs.aureussolutions.com/cgi-bin/ncommerce3/ExecMacro/44563/DFullView.d2w/report

0.838crt-Icol-SI1clar-AGS0-T54%-C34.6%-P43.1%-$2992

Cut Adviser Rating: 1.8-Excellent

This one is also AGS ideal but has an excellent beauty rating. It is more expensive than yours because of higher clarity grade and weight.

I really don't mind paying the extra dollars for a diamond that I want but this one was advertised as near perfect.

Thanks for everyones help and stayed tuned for round two!

Brian

I sent you an email with a possible stone. I think you can do better for a few hundred more which may be negotiable.

Often the diamond is with the manufacturer/wholesaler until sold, unless it is out for inspection with another dealer. I don't think you should pay any extra shipping-I sure wouldn't.

Sorry your last post disappeared. It must have been some kind of server/software error.

Well, you know what my response to you means even if it's confusing to those who never got to read your post!

I am sure this post will be pretty close to the one that got lost.

I have returned the above diamond and started round two.

I am interested in another AGS000. I am really gun shy at this point of the AGS000 certification but I am giving it another try.

Diamond is:
Color G
SI2
.797
56% Table
34.4 Crown angle
41.1 Pav angle
Girgle .9 to 1.7

Cut Advisor says:
Brill = Very Good
Fire = Good
Scin = Good
Spread = Good
Over all a 3.3 or very Good- Worth buying if price is right. Sales offered the stone at $2880.00

Stepping back, I have been able to read everything here (several times) and alot from other sites in the time that I have put in to looking for a diamond. I have found this site to be accurate in every way, along with the Cut Advisor already saving me from a less than desired purchase!

Sales people LOVE to push/brag that AGS000 is the best there is and nobody ever has to worry about quality because of this 000 rating. I am quickly thinking less and less of it.

So, am I expecting too much, that if I buy an AGS000 it should rate more than 3.3 on the Cut Advisor rating scale!?

I will keep looking, or maybe I am expecting too much.

Thanks for helping, and giving me a place to vent.

Brian

Of course you're not expecting too much.

When you're done with your search, you will find the diamond that's just right for you. It's out there!

Thanks for the kind words about the site and the cut adviser. You'll be an "expert" soon. Imagine what you could teach some of your local jewelers.

Here is one tip. Consider Tolkowsky proportions as a starting point: 34.5 crown and 40.75 pavilion angles. Deviation from these proportions should be in 4:1 or 5:1 inverse relationship. I.e. if crown angle increase 1 degree pavilion angle should decrease about 0.2-0.25 degree.

In your example above 41.1 pavilion angle should be compensated by shallower crown (about 33 degrees) to keep the good score.

You can find excellent scoring diamonds within AGS0 but it also allows diamonds that are leaking the light.

At the same time using Garry Holloway knowledge one can find great stones outside AGS0 and safe quite a bit of money.

As for missing post, it is real mystery to me

I just wish sometimes a little more information was given for each diamond on web sites. Sometimes you don't get much, like measurements etc...

I'm trying to convince some dealers to provide us with the Sarin data so we'll be able to evaluate their ratings automatically.

Well I finally have another stone, it is:

GIA cert
Polish – Ex
Sym - Ex
Color G
SI1
.71
Diameter 5.78 ( 5.77 – 5.80 )
Crown Angle 34.4 o
Crown Height 15.4 %
Pavil Angle 40.7 o
Pavil Depth 42.7 %
Cutlet 0.7 %
Table 55.4 %
Total Depth 60.9 %
Girdle % 0.7 – 1.2

Rates excellent on HCA, I really notice a difference from the last stone I had, particularly in different light settings. Wow, it really looks beautiful!

Some thoughts about all of this, or the way I feel about it all.
I bought an H&A type diamond to feel safe in what I was getting. I think I would have been very happy with an above average cut non H&A stone but how do I get it? No one wants to provide any information! Also I wanted to shorten this process since I have been at it for some time….. I wanted a very nice cut and got it. But I don’t want to say from where or exactly what I got so I don’t give them any credit.

I have dealt with 2 vendors on the Internet for this diamond purchase, they both asked me to write up something to post and say I had a good buying experience from them. Sorry to say, It really wasn’t that great, one sold me an AGS000 that leaked light and was returned and the other just seemed like I was talking to a used car salesman. If it wasn’t for them having the diamond I wanted I would have kept looking.

If vendors really want me to be happy and get my business, and return business than post the Sarin numbers so I don’t have to chase my tail and talk to sales people, because they don’t help anyways!

Consumers also need more Independent appraisals to chose from, while I think an okay service is being performed I feel things can get way too chummy if more choices are not provided.

So,
Give credit to where credit is due, which is Pricescope, HCA and special thanks to Lawmax, I would have been lost with their help!

Thanks for posting about your experience. I'm sorry it wasn't better, but glad you have a diamond you and your fiancee can always feel good about.

I would be willing to bet that it will look amazing compared to what anyone else you know is wearing. Most people have never seen one like it.

You and I have discussed your experience and we appreciate your feedback here. As you know, we are working on an appraiser section.

Take care and I wish you a lifetime of happiness,

lawmax

Here's to you and your fiancee!

Congratulations with your diamond! I'm happy that you finally got what you wanted. Although not everything was smoothly for you your lady will have a great diamond.

Thanks for kind words and best wishes for your engagement!

It's so great to hear success stories. Again, I commend you for working until you got what you really wanted.

I'm sure the diamond is amazing-it will be a real treat to look at it every day. I know I'm always entertained by looking at mine in all the different types of lighting I encounter.