Is a depth of 67.3 too shallow for a Princess cut diamond?

[The Heart of the Ocean]

The square modified brilliant is 2.5 carats, table 68%, with a depth of 67.3%. I know the general rule of thumb is the table shouldn’t exceed the depth, but since it’s only a marginal amount, I don’t see it being an issue. The girdle is thick, but I don’t think that will be an issue either.

The clarity is Vs1, the symmetry and polish are excellent. It’s GIA, but in hindsight I wish I would have gone with AGS because they can grade light performance and cut grade on square modified brilliants. Any opinions on the girdle and marginal issue of table being greater than depth are welcomed, but my main concern is the depth since some companies say it’s within the recommended range and some such as AGS ideal says it’s not. 65-75, 62-74 or 68-75, 71-75. Why are they’re so many ranges?

In your expert opinions, do you think the depth will noticeably affect the way light will be distributed? feel free to weigh in on the thick girdle too. I forgot to get a pic of said diamond and have only seen it in the very flattering jewelry store lights bc it was a dreary, rainy day.

 

[flyingpig]

Cannot say anything meaningful with those numbers.
Need a well taken magnified photo of the diamond.

 

[The Heart of the Ocean]

Cannot say anything meaningful with those numbers.
Need a well taken magnified photo of the diamond.

Thanks, I understand. Since I don’t have a photo, I guess I was asking in a “in general” way. It’s being put into its forever setting now so I guess I’ll like it or not lol. It looked nice in the store, but everything looks good under that lighting

 

[Karl_K]

Your asking is a blue car fast?
That is why your not going to get an answer with just that info.

 

[The Heart of the Ocean]

Your asking is a blue car fast?
That is why your not going to get an answer with just that info.

Ok, so depth doesn’t matter

 

[The Heart of the Ocean]

Ok, so depth doesn’t matter

What other information do I need to add. I do not have a picture. Is a picture required? This my first post. I just made an account. Maybe I’m not understanding the platform of this particular diamond website. It’s F color, Vs1 with very tiny inclusions, excellent polish and symmetry, its 7.53x7.51x 5.06, no culet, no Florescence. Table 68 & depth 67.3. That’s all I have. What else is there? I don’t know the crown height and all those details.

 

[flyingpig]

I cannot say anything about the diamond's performance.

But I can say, with the thick girdle and 67 depth, it basically has no crown height. Meh.

 

[cakeeatingcat]

What other information do I need to add. I do not have a picture. Is a picture required? This my first post. I just made an account. Maybe I’m not understanding the platform of this particular diamond website. It’s F color, Vs1 with very tiny inclusions, excellent polish and symmetry, its 7.53x7.51x 5.06, no culet, no Florescence. Table 68 & depth 67.3. That’s all I have. What else is there? I don’t know the crown height and all those details.

Hi! I'm a newish member myself who found this forum while looking for advice. It can be daunting and confusing to post on a forum with so many experienced users. Based on your description, it's not enough info for anyone to tell you if the light performance is good because a lot of the light performance is determined by the inside of the diamond.

I think what @Karl_K means is that your question is like if you asked how a car would perform based solely on external characteristics: you haven't told us what is under the hood, what engine it has, what navigation system, etc. Thus, no one can say if the car is fast... or if it is even running or working!

Similarly, without close up photos of a diamond, it is challenging determine how its light performance will be solely on a description of the outside only.

 

[Karl_K]

ok lets take a none snarky deep dive.
There are 2 common ways to cut a princess crown and there are 3 common ways to cut the pavilion.
The pavilion is the more important as it does more of the work than in a round.
Remember I said there were 3 common ways to cut the pavilion, one of them needs to be deeper to work well the other 2 can be slightly shallower and work well.

The saying that table larger than depth or depth larger than table or whatever can be false and it can be true with different combinations. I just ignore the sayings.


2 princess cuts could have the same numbers on the report and and ones a dud and one is great.
You just can not tell by the numbers.

 

[The Heart of the Ocean]

ok lets take a none snarky deep dive.
There are 2 common ways to cut a princess crown and there are 3 common ways to cut the pavilion.
The pavilion is the more important as it does more of the work than in a round.
Remember I said there were 3 common ways to cut the pavilion, one of them needs to be deeper to work well the other 2 can be slightly shallower and work well.

The saying that table larger than depth or depth larger than table or whatever can be false and it can be true with different combinations. I just ignore the sayings.


2 princess cuts could have the same numbers on the report and and ones a dud and one is great.
You just can not tell by the numbers.

Thanks, I appreciate the more in depth explanation.

 

[diamondhoarder]

ok lets take a none snarky deep dive.
There are 2 common ways to cut a princess crown and there are 3 common ways to cut the pavilion.
The pavilion is the more important as it does more of the work than in a round.
Remember I said there were 3 common ways to cut the pavilion, one of them needs to be deeper to work well the other 2 can be slightly shallower and work well.

The saying that table larger than depth or depth larger than table or whatever can be false and it can be true with different combinations. I just ignore the sayings.


2 princess cuts could have the same numbers on the report and and ones a dud and one is great.
You just can not tell by the numbers.

@Karl_K you have me intrigued now about the common ways to cut the pavilion and crown and which one needs the deeper pavilion. Can you elaborate on this? Your explanations of the way light works with the proportions of cut are always really interesting I suspect it could be useful as well for many others on PS who are interested in buying a princess, since these days PS seems to focus a lot more on other cuts.

 

[diamondhoarder]

The square modified brilliant is 2.5 carats, table 68%, with a depth of 67.3%. I know the general rule of thumb is the table shouldn’t exceed the depth, but since it’s only a marginal amount, I don’t see it being an issue. The girdle is thick, but I don’t think that will be an issue either.

The clarity is Vs1, the symmetry and polish are excellent. It’s GIA, but in hindsight I wish I would have gone with AGS because they can grade light performance and cut grade on square modified brilliants. Any opinions on the girdle and marginal issue of table being greater than depth are welcomed, but my main concern is the depth since some companies say it’s within the recommended range and some such as AGS ideal says it’s not. 65-75, 62-74 or 68-75, 71-75. Why are they’re so many ranges?

In your expert opinions, do you think the depth will noticeably affect the way light will be distributed? feel free to weigh in on the thick girdle too. I forgot to get a pic of said diamond and have only seen it in the very flattering jewelry store lights bc it was a dreary, rainy day.

How exciting, that will be a sizeable rock! Is it possible to obtain a magnified photo and/ or video from the vendor of your diamond before they set it for you? If you have any lingering concerns about the diamond then its always good to satisfy yourself on these issues before making a committment that you can't back out of. There's nothing worse than buyers remorse on an expensive stone.

Its also helpful to be view a diamond in different lighting conditions. If you have a full return policy then you will be able to do this at your leisure, but if buying from a store without that kind of return option then they should allow you to view it in natural daylight which is more telling than the dazzle of the store spotlights.

If you do manage to get some images then please post them and the lovely folks here on PS should be able to give you some helpful feedback.

And we always love to see photos of the final ring, in the box and on the finger too

 

[Karl_K]

@Karl_K you have me intrigued now about the common ways to cut the pavilion and crown and which one needs the deeper pavilion. Can you elaborate on this? Your explanations of the way light works with the proportions of cut are always really interesting I suspect it could be useful as well for many others on PS who are interested in buying a princess, since these days PS seems to focus a lot more on other cuts.

2,3,4 chevron pavilions
In general 2 chevron needs to be deeper than 3 or 4 but it also can have better spread per ct.
There are also 5 6 or even 7 chevron but they are not common.

Princess cuts: 2-3-4 Chevron.. huh?

The arrows on the wire diagrams of princess cuts points to the Chevron facets. The first has 2 the second 3 and the third has 4 chevrons.

www.pricescope.com

 

[diamondhoarder]

2,3,4 chevron pavilions
In general 2 chevron needs to be deeper than 3 or 4 but it also can have better spread per ct.
There are also 5 6 or even 7 chevron but they are not common.

Princess cuts: 2-3-4 Chevron.. huh?

The arrows on the wire diagrams of princess cuts points to the Chevron facets. The first has 2 the second 3 and the third has 4 chevrons.

www.pricescope.com

That's really helpful Karl. I'm just off to go and check the chevrons on my pwn princess......

 

[The Heart of the Ocean]

How exciting, that will be a sizeable rock! Is it possible to obtain a magnified photo and/ or video from the vendor of your diamond before they set it for you? If you have any lingering concerns about the diamond then its always good to satisfy yourself on these issues before making a committment that you can't back out of. There's nothing worse than buyers remorse on an expensive stone.

Its also helpful to be view a diamond in different lighting conditions. If you have a full return policy then you will be able to do this at your leisure, but if buying from a store without that kind of return option then they should allow you to view it in natural daylight which is more telling than the dazzle of the store spotlights.

If you do manage to get some images then please post them and the lovely folks here on PS should be able to give you some helpful feedback.

And we always love to see photos of the final ring, in the box and on the finger too

I will surely post it once I get it back. It happened kind of weird bc I told the manager I didn’t want to go through with it (the deal was I would sell them back my original diamond which was 1.64 carats) we were there for hours contemplating and my husband had to be on a conference call with his work. I feel like I wanted to come home and think on it but somehow I guess between my husband’s conference call and whatever the manager and my husband were discussing before the con. call, things got confusing. I was ready to walk away with my original ring. But, I guess I didn’t convey that even though I plainly told them both I didn’t want to do it. I really like the new diamond and thought I did my homework (the more I thought I knew, the more I realized I didn’t know lol) but I always second guess myself then I found out about crown height. This diamond has a thick girdle which isn’t horrible, and it’s 67.3% depth which is within excellent range with some standards and a little shallow with AGS standards. With that combo it can’t have a high crown. I didn’t even take that into consideration. I’ve been thinking about it non stop and it’s driving me crazy. I’m pretty sure at this point it’s too late bc it’s probably being set as I type this.

maybe it’s going to be ok and I want it to be too perfect.
Thanks for the kind words.

 

[The Heart of the Ocean]

2,3,4 chevron pavilions
In general 2 chevron needs to be deeper than 3 or 4 but it also can have better spread per ct.
There are also 5 6 or even 7 chevron but they are not common.

Princess cuts: 2-3-4 Chevron.. huh?

The arrows on the wire diagrams of princess cuts points to the Chevron facets. The first has 2 the second 3 and the third has 4 chevrons.

www.pricescope.com

I just figured out what a chevron is & how to count them. Even the manager was puzzled when I asked him how many chevrons that diamond has‍ It was easiest for me to start from the center main pavilion which of course isn’t counted as a chevron and count outwardly.

 

[Texas Leaguer]

I just figured out what a chevron is & how to count them. Even the manager was puzzled when I asked him how many chevrons that diamond has‍ It was easiest for me to start from the center main pavilion which of course isn’t counted as a chevron and count outwardly.

You might find useful info here. Color coded facet diagrams included.

AGSL Diamond Cut Grading The Princess Cut

Princess diamonds are comprehensively graded for cut quality by only one laboratory. Learn about light performance methodology of the American Gem Society Laboratories.

www.whiteflash.com

 

[diamondhoarder]

I will surely post it once I get it back. It happened kind of weird bc I told the manager I didn’t want to go through with it (the deal was I would sell them back my original diamond which was 1.64 carats) we were there for hours contemplating and my husband had to be on a conference call with his work. I feel like I wanted to come home and think on it but somehow I guess between my husband’s conference call and whatever the manager and my husband were discussing before the con. call, things got confusing. I was ready to walk away with my original ring. But, I guess I didn’t convey that even though I plainly told them both I didn’t want to do it. I really like the new diamond and thought I did my homework (the more I thought I knew, the more I realized I didn’t know lol) but I always second guess myself then I found out about crown height. This diamond has a thick girdle which isn’t horrible, and it’s 67.3% depth which is within excellent range with some standards and a little shallow with AGS standards. With that combo it can’t have a high crown. I didn’t even take that into consideration. I’ve been thinking about it non stop and it’s driving me crazy. I’m pretty sure at this point it’s too late bc it’s probably being set as I type this.

maybe it’s going to be ok and I want it to be too perfect.
Thanks for the kind words.

I'm also prone to second guessing myself on all jewellery purchases so I feel your pain! Hopefully it will come out really nicely. If you are not happy when you see the finished ring do you have a return policy?

 

[The Heart of the Ocean]

I'm also prone to second guessing myself on all jewellery purchases so I feel your pain! Hopefully it will come out really nicely. If you are not happy when you see the finished ring do you have a return policy?

Thank you. Your kind, understanding words help a lot. I will have to check. I honestly felt a little pushed.