optic difference

[kittycat1988]

hi everyone! I am trying to distinguish if there will be any optic difference between these two diamonds (to the naked eye) by just looking at these stats. Which one do you think it's a better deal? Would love to hear your opinion on them!

Diamond #1
Clarity: VS2
Table: 56%
Depth: 61.8%
Crown: 34.5%
Pavilion: 40.8%
Crown height: 15%
Price: $5,010

Diamond #2
Clarity: VS1
Table 57%
Depth 62%
Crown 35%
Pavilion 40.8%
Crown height: 15%
Price $4,950

 

[urseberry]

Impossible to tell from this limited information.

 

[kittycat1988]

Impossible to tell from this limited information.

really? i thought diamond cutting is more of a mathematics combination? is this a wrong way of approach?

 

[solgen]

More information would help but some inferences based on those specs can be made. The specs are fairly similar so performance should be as well.

 

[kittycat1988]

More information would help but some inferences based on those specs can be made. The specs are fairly similar so performance should be as well.

Unfortunately the seller is only able to provide GIA reports, so i can only make a decision based on numbers. These two diamonds are very similar to each other, except the differences I listed above, all other stats are the same (carat weight, color, lower girdle facet, ect). Would you pick one over the other?

 

[ecf8503]

They really are similar on paper. Any way to get idealscope images? Have you seen them in person? If you have, I'd go with the one that speaks to you.

 

[kittycat1988]

They really are similar on paper. Any way to get idealscope images? Have you seen them in person? If you have, I'd go with the one that speaks to you.

unfortunately i won't be able to see them in person, and no idealscope images as well. they are the cheapest I can find with great cutting graded by GIA. Thus I am curious to hear others' opinion on them i suppose the biggest differences between them are 1) clarity (VS1 vs VS2) the types inclusions are about the same too 2) 34.5 vs 35% crown angle and 3) 61.8 vs 62 depth

 

[ecf8503]

GIA rounds their numbers. So nothing they have listed is exact, and facets can vary from one to another, hence the rounding, but GIA rounds more than AGS.

Makes me wonder why the VS1 is cheaper than the VS2 though.

How much difference is there in diameter? Is there fluorescence?

They really are very similar - 1% difference in table size, less than 1% in depth, crown angles 0.5%, same crown heights. 1.3 HCA, 1.7 HCA.

There isn't much more we can say. You need to see them; by paper they both appear to have good potential.

 

[kittycat1988]

GIA rounds their numbers. So nothing they have listed is exact, and facets can vary from one to another, hence the rounding, but GIA rounds more than AGS.

Makes me wonder why the VS1 is cheaper than the VS2 though.

How much difference is there in diameter? Is there fluorescence?

They really are very similar - 1% difference in table size, less than 1% in depth, crown angles 0.5%, same crown heights. 1.3 HCA, 1.7 HCA.

There isn't much more we can say. You need to see them; by paper they both appear to have good potential.

The two diameters are 6.44 x 6.45 and 6.46 x 6.47, both are 1ct. Just curious, if the clarity is higher, does that make a difference in the size of the inclusions? would the VS1 inclusions be smaller as it requires a higher magnification to see them? one has strong fluorescence (VS2) and the other one has very strong blue fluorescence (VS1). The seller said both diamonds look clear in normal light condition and no trace of oily or milky appearance. But I think that's why the VS1 is cheaper.

how big of a difference would the 0.5% crown difference make in terms of optics generally speaking? Thank you for your help ECF

 

[solgen]

If you have the GIA report numbers it might help to post them. Though with lurkers I can understand why you might not want to.

 

[kittycat1988]

If you have the GIA report numbers it might help to post them. Though with lurkers I can understand why you might not want to.

I think I would like to keep them private as I am in the process of determining which to purchase but those are the statistics listed on the reports.

 

[Dancing Fire]

GIA rounds their numbers. So nothing they have listed is exact, and facets can vary from one to another, hence the rounding, but GIA rounds more than AGS.

Makes me wonder why the VS1 is cheaper than the VS2 though.

How much difference is there in diameter? Is there fluorescence?

They really are very similar - 1% difference in table size, less than 1% in depth, crown angles 0.5%, same crown heights. 1.3 HCA, 1.7 HCA.

There isn't much more we can say. You need to see them; by paper they both appear to have good potential.

The two diameters are 6.44 x 6.45 and 6.46 x 6.47, both are 1ct. Just curious, if the clarity is higher, does that make a difference in the size of the inclusions? would the VS1 inclusions be smaller as it requires a higher magnification to see them? one has strong fluorescence (VS2) and the other one has very strong blue fluorescence (VS1). The seller said both diamonds look clear in normal light condition and no trace of oily or milky appearance. But I think that's why the VS1 is cheaper.

how big of a difference would the 0.5% crown difference make in terms of optics generally speaking? Thank you for your help ECF

Of course it'll look normal under indoor lighting, now ask him to go outside and look under the sunlight.The fluor can only be activated when UV is present.

 

[Dancing Fire]

If you have the GIA report numbers it might help to post them. Though with lurkers I can understand why you might not want to.

I think I would like to keep them private as I am in the process of determining which to purchase but those are the statistics listed on the reports.

Based on the specs I'd go with #1 . what is the return policy?

 

[kittycat1988]

GIA rounds their numbers. So nothing they have listed is exact, and facets can vary from one to another, hence the rounding, but GIA rounds more than AGS.

Makes me wonder why the VS1 is cheaper than the VS2 though.

How much difference is there in diameter? Is there fluorescence?

They really are very similar - 1% difference in table size, less than 1% in depth, crown angles 0.5%, same crown heights. 1.3 HCA, 1.7 HCA.

There isn't much more we can say. You need to see them; by paper they both appear to have good potential.

The two diameters are 6.44 x 6.45 and 6.46 x 6.47, both are 1ct. Just curious, if the clarity is higher, does that make a difference in the size of the inclusions? would the VS1 inclusions be smaller as it requires a higher magnification to see them? one has strong fluorescence (VS2) and the other one has very strong blue fluorescence (VS1). The seller said both diamonds look clear in normal light condition and no trace of oily or milky appearance. But I think that's why the VS1 is cheaper.

how big of a difference would the 0.5% crown difference make in terms of optics generally speaking? Thank you for your help ECF

Of course it'll look normal under indoor lighting, now ask him to go outside and look under the sunlight.The fluor can only be activated when UV is present.

dancing fire, thank you for your reminder. Would you say in this case, the cut is no longer a concern but fluor is the deal breaker? How much of that 0.5% crown would make a difference in optics?

 

[kittycat1988]

If you have the GIA report numbers it might help to post them. Though with lurkers I can understand why you might not want to.

I think I would like to keep them private as I am in the process of determining which to purchase but those are the statistics listed on the reports.

Based on the specs I'd go with #1 . what is the return policy?

30 day

 

[Rockdiamond]

A few things stand out to me.
The fluorescence definitely CAN impact the look of a diamond indoors. In worst cases SB or VSB diamonds can be dull and lifeless- in ANY light bright enough to see the stones.
Second- the cheapest stones are not necessarily bargains. In many cases there's something causing the price that will affect how the diamond looks.
Third- if the seller actually has the diamonds to give a firsthand observation why can't they provide pictures?
Put all these three aspects together and red flags go up for me.

The difference in numbers between the two is not the issue.

 

[Dancing Fire]

GIA rounds their numbers. So nothing they have listed is exact, and facets can vary from one to another, hence the rounding, but GIA rounds more than AGS.

Makes me wonder why the VS1 is cheaper than the VS2 though.

How much difference is there in diameter? Is there fluorescence?

They really are very similar - 1% difference in table size, less than 1% in depth, crown angles 0.5%, same crown heights. 1.3 HCA, 1.7 HCA.

There isn't much more we can say. You need to see them; by paper they both appear to have good potential.

The two diameters are 6.44 x 6.45 and 6.46 x 6.47, both are 1ct. Just curious, if the clarity is higher, does that make a difference in the size of the inclusions? would the VS1 inclusions be smaller as it requires a higher magnification to see them? one has strong fluorescence (VS2) and the other one has very strong blue fluorescence (VS1). The seller said both diamonds look clear in normal light condition and no trace of oily or milky appearance. But I think that's why the VS1 is cheaper.

how big of a difference would the 0.5% crown difference make in terms of optics generally speaking? Thank you for your help ECF

Of course it'll look normal under indoor lighting, now ask him to go outside and look under the sunlight.The fluor can only be activated when UV is present.

dancing fire, thank you for your reminder. Would you say in this case, the cut is no longer a concern but fluor is the deal breaker? How much of that 0.5% crown would make a difference in optics?

Hard to guess w/o further information...like a sarin report, I-scope, ASET.

 

[kittycat1988]

A few things stand out to me.
The fluorescence definitely CAN impact the look of a diamond indoors. In worst cases SB or VSB diamonds can be dull and lifeless- in ANY light bright enough to see the stones.
Second- the cheapest stones are not necessarily bargains. In many cases there's something causing the price that will affect how the diamond looks.
Third- if the seller actually has the diamonds to give a firsthand observation why can't they provide pictures?
Put all these three aspects together and red flags go up for me.

The difference in numbers between the two is not the issue.

Good points. Thank you for the reminders Rockdiamond!

 

[kittycat1988]

GIA rounds their numbers. So nothing they have listed is exact, and facets can vary from one to another, hence the rounding, but GIA rounds more than AGS.

Makes me wonder why the VS1 is cheaper than the VS2 though.

How much difference is there in diameter? Is there fluorescence?

They really are very similar - 1% difference in table size, less than 1% in depth, crown angles 0.5%, same crown heights. 1.3 HCA, 1.7 HCA.

There isn't much more we can say. You need to see them; by paper they both appear to have good potential.

The two diameters are 6.44 x 6.45 and 6.46 x 6.47, both are 1ct. Just curious, if the clarity is higher, does that make a difference in the size of the inclusions? would the VS1 inclusions be smaller as it requires a higher magnification to see them? one has strong fluorescence (VS2) and the other one has very strong blue fluorescence (VS1). The seller said both diamonds look clear in normal light condition and no trace of oily or milky appearance. But I think that's why the VS1 is cheaper.

how big of a difference would the 0.5% crown difference make in terms of optics generally speaking? Thank you for your help ECF

Of course it'll look normal under indoor lighting, now ask him to go outside and look under the sunlight.The fluor can only be activated when UV is present.

dancing fire, thank you for your reminder. Would you say in this case, the cut is no longer a concern but fluor is the deal breaker? How much of that 0.5% crown would make a difference in optics?

Hard to guess w/o further information...like a sarin report, I-scope, ASET.

That's true, if I am truly concerned about cut then these images are essential. I am starting to change my mind on these two diamonds and the vendor.