Proposal Ring - Part 2

[babyjyo]

Dear all, if in the GIA cert, the fluorescence stated faint, is this damond ok? How much difference is it to none?

Then how about the polish? If it is just very good?

As long as the cut, polish and symmetry is of very good, there would be a high chance if the diamond can perform given the right proportions and optical symmetry.

Fluorescence does not affect the performance of the diamond. It is an individual preference. They are people who like the Fluorescence effect.

 

[TurkMan]

As long as the cut, polish and symmetry is of very good, there would be a high chance if the diamond can perform given the right proportions and optical symmetry.

Fluorescence does not affect the performance of the diamond. It is an individual preference. They are people who like the Fluorescence effect.

The diamond won't be a high performing one if it's graded Very Good.. There are bad Excellent graded ones.. If it drops to Very Good, it would even be worse.

 

[shawnlau]

The diamond won't be a high performing one if it's graded Very Good.. There are bad Excellent graded ones.. If it drops to Very Good, it would even be worse.

But if the HCA is 0.8, it wun be very bad right?

 

[shawnlau]

The diamond won't be a high performing one if it's graded Very Good.. There are bad Excellent graded ones.. If it drops to Very Good, it would even be worse.

But if the HCA is 0.8, it wun be very bad right?

 

[[GorgeouS]]

As long as the cut, polish and symmetry is of very good, there would be a high chance if the diamond can perform given the right proportions and optical symmetry.

Fluorescence does not affect the performance of the diamond. It is an individual preference. They are people who like the Fluorescence effect.

Fluorescence is actually a 3rd party impurity that can make a diamond chalky even without direct sunlight, the only thing is that it turns blue under UV ray light. Under other lighting, it may look chalky. Regardless of cut, it hinders a diamonds performance to a certain degree.

But if the HCA is 0.8, it wun be very bad right?

It can still be very bad.. the HCA is only like a filter process because it neglects many factors. It can be very deceiving sometimes.

Like this sample

Jannpaul's explanation:

Valen Lai Hi JP. How is a triple VG able to score a 0.7 on the HCA?
July 4, 2011 at 1:55pm · Like

JannPaul Hello Valen, sure they can obtain good scoring as HCA utilizes the angles and proportions which are easily available on certificates.
However, due to the poor symmetry, they are most often not accurate. Thus, the need for scopes.
The percentages and angles there are used in the HCA calculation are only average values. This means that there may be huge deviations between the maximum and minimum values, limiting the accuracy of the result.
In short, HCA does not take into account of optical symmetry.
July 4, 2011 at 2:30pm · Like

JannPaul Just wanted to add, this diamond is one of the best "triple VG's" in the market, most won't actually get such a HCA score and look this "good" through scopes, we don't carry these diamonds as you guys know it, we only collect Super Ideals. -Paul

From
Typical Triple VG (Very Good) Diamond | Facebook

 

[[GorgeouS]]

Hi guys!! This is Part 2- Continuation of my retail shopping experience.

Mondial (Paragon)
Sales person was very knowledgeable and seemed to know what he was talking about.
Their diamonds are GIA certified (I tend to avoid shops that sells other certificates like IGI). So this was a plus point for me.
They emphasize alot about the proportions of the diamond and follow a "49 parameters" rule.
They have a Mondial Cut which is their Signature range (57 facets) and limit to D-G Color and Flawless-VS1 Clarity. They don't carry diamonds with fluorescence, which is also another plus point for me.

If I do get from them, I would only consider their Mondial Cut. Was quoted 0.63 F VVS2 for about $7k.
They seem to be better priced compared to the other retailers.. but need to read more about their "49 parameters" rule..

Charlotte (Wisma)
Famous for the Tolkowsky diamond cut, their Signature diamond (also 57 facets).
He is famous diamond cutter to come up with the Ideal proportions of a diamond in the 1900s.

They've also got another diamond called the Gabrielle cut (105 facets). Almost double the facets of a normal round!
They did a diamond comparison for me with the Gabrielle and a 57 facet diamond. The Gabrielle looked much better.. However, the 57 facet diamond they used for comparison was not their Tolkowsky cut, but a lower quality one. (I realized alot of shops do this with their special cuts.. using a lousy 57 facets against their higher faceted diamond).

One thing I discovered though is none of their diamonds are GIA certified. They use their own certificate called the Tolkowsky or Gabrielle cert.. essentially, they certify their own diamonds. The lady explained to me that diamonds with these certificates would appreciate in value over the years because their certificates are more special and limited.. Personally, I'm not too sure about that.

Was quoted Tolkowsky 0.58 G VS2 for $10.5k
Gabrielle cut 0.55 G VS1 for $9.5k

I guess you're paying more for the story of the diamond..

Gold Heart (Wisma)
They seem to carry quite a number of different brand cuts that can be quite confusing..
They have the normal 57 facet diamond and also another range called the Arctica Ice (also 57 facets). From the name itself, their diamonds are from the arctic region which makes it more special? They don't have a tight quality control of it as they carry Very Good Cuts and above.. I'm not sure is it my eyes, but I find that the diamonds from the Arctica Ice range looking very dark... Not as in it looks more yellow but like a darker shade of grey.

They have a modified Round too called the Celestial cut (73 facets).
A Celestial 0.58 F SI1 will set you back $6.8k. Most of their diamonds are SI quality and they didn't have any VVS-VS for me to look at when I was there.

You should compile it together with your part 1 so that newer readers don't have to keep scrolling back to find it

 

[Des126]

Fluorescence is actually a 3rd party impurity that can make a diamond chalky even without direct sunlight, the only thing is that it turns blue under UV ray light. Under other lighting, it may look chalky. Regardless of cut, it hinders a diamonds performance to a certain degree.



It can still be very bad.. the HCA is only like a filter process because it neglects many factors. It can be very deceiving sometimes.

Like this sample

Jannpaul's explanation:

Valen Lai Hi JP. How is a triple VG able to score a 0.7 on the HCA?
July 4, 2011 at 1:55pm · Like

JannPaul Hello Valen, sure they can obtain good scoring as HCA utilizes the angles and proportions which are easily available on certificates.
However, due to the poor symmetry, they are most often not accurate. Thus, the need for scopes.
The percentages and angles there are used in the HCA calculation are only average values. This means that there may be huge deviations between the maximum and minimum values, limiting the accuracy of the result.
In short, HCA does not take into account of optical symmetry.
July 4, 2011 at 2:30pm · Like

JannPaul Just wanted to add, this diamond is one of the best "triple VG's" in the market, most won't actually get such a HCA score and look this "good" through scopes, we don't carry these diamonds as you guys know it, we only collect Super Ideals. -Paul

From
Typical Triple VG (Very Good) Diamond | Facebook

I do not 100% agree the statement of "Fluorescence is actually a 3rd party impurity that can make a diamond chalky even without direct sunlight"

May i know how many diamonds with fluorescence have you seen before?

There was a GIA study on this topic and they conclude that, in the vast majority of cases, it has no affect at all on the look of the stone.

In general, most of the Faint & Medium Blue fluorescence does not make the stones milky or chalky. Especially stone with Faint Fluo, they look almost the same as None Fluo stone under all types of light condition.

However, we have to be careful when deal with strong blue fluo diamonds as some of them may cause the stone milky/hazy. Nevertheless, based on the GIA research, only 3% out of the strong blue diamonds do have milky/hazy appereance.

With or wothout fluorescence, it boils down to personal taste.

 

[[GorgeouS]]

Fluorescence is an impurity in a diamond.

GIA description on Fluorescence.
In most cases, fluorescence is caused by the presence of nitrogen as a trace element impurity in diamond. You may know that diamonds are composed of carbon atoms organized in a lattice-like crystal structure. Sometimes some carbon atoms are missing in the lattice. These single or multiple vacancies may each be filled by a nitrogen atom. For example, a single nitrogen atom trapped near a vacancy causes bright orange-yellow fluorescence. But most commonly, three nitrogen atoms in lattice positions adjacent to a vacancy cause blue fluorescence.

But of course, it is a personal taste of whether you want fluorescence or not.

I've only seen a couple diamonds with fluorescence.. To me, I can see a slight difference in the diamond.. but you can also say that it might be psychological too.. Either way, i feel that diamonds with fluorescence are cheaper in price for a reason. I would prefer one with no fluorescence for the peace of mind.

 

[Des126]

Dear all, if in the GIA cert, the fluorescence stated faint, is this damond ok? How much difference is it to none?

Then how about the polish? If it is just very good?

I would advise to see the difference personally. I believe some jewellers will be able to show you None, Faint & Medium for comparison.

See them under difference lighting environment if you are able to observe any difference. If possible under the direct sunlight as well.

As for the VG polish, i'm fine with it with low clarity. VG polish should not be consider if you are getting D/E VVS.

 

[Des126]

Fluorescence is an impurity in a diamond.

GIA description on Fluorescence.
In most cases, fluorescence is caused by the presence of nitrogen as a trace element impurity in diamond. You may know that diamonds are composed of carbon atoms organized in a lattice-like crystal structure. Sometimes some carbon atoms are missing in the lattice. These single or multiple vacancies may each be filled by a nitrogen atom. For example, a single nitrogen atom trapped near a vacancy causes bright orange-yellow fluorescence. But most commonly, three nitrogen atoms in lattice positions adjacent to a vacancy cause blue fluorescence.

But of course, it is a personal taste of whether you want fluorescence or not.

I've only seen a couple diamonds with fluorescence.. To me, I can see a slight difference in the diamond.. but you can also say that it might be psychological too.. Either way, i feel that diamonds with fluorescence are cheaper in price for a reason. I would prefer one with no fluorescence for the peace of mind.

I have actually seen a couple of Faint & Medium as well. I can see a slight difference in Medium Blue but not Faint.

I think if the price is just slightly lower, of course stick to None for the peace of mind. But if the price difference is a lot and you can't see the difference when compare to None under all the lighting condition, then it is worth to consider.

Of course please take note that not all the Faint & Medium Fluo stone are identical, you need to inspect the stone personally before you commit.

 

[sweetthinker]

i like to share my picture but i can't paste the picture here, how do i do it?

You need to upload it on another website first like Image hosting, free photo sharing & video sharing at Photobucket then just paste the link

 

[shawnlau]

I would advise to see the difference personally. I believe some jewellers will be able to show you None, Faint & Medium for comparison.

See them under difference lighting environment if you are able to observe any difference. If possible under the direct sunlight as well.

As for the VG polish, i'm fine with it with low clarity. VG polish should not be consider if you are getting D/E VVS.

Oh ok.. Thanks.. Cos got a few diamond but dunno which to choose..

 

[DawnMin]

Oh ok.. Thanks.. Cos got a few diamond but dunno which to choose..

Sorry but vg polish means that clarity will be even more apparent and obvious
Even it's true color. This is why you find fancy colors in vg-g polish cut grades to save its color.

Definitely not the case that vg should be considered with a low clarity diamond, the clarity just looks even more obvious

The only thing you can consider sacrificing is when you have colors of J K L M you can consider having fluorescence to aid its color if it's not Milky

 

[shawnlau]

Sorry but vg polish means that clarity will be even more apparent and obvious
Even it's true color. This is why you find fancy colors in vg-g polish cut grades to save its color.

Definitely not the case that vg should be considered with a low clarity diamond, the clarity just looks even more obvious

The only thing you can consider sacrificing is when you have colors of J K L M you can consider having fluorescence to aid its color if it's not Milky

So is the following stone a gd buy?
0.73ct E VS2, cut E, sym E, pol VG, HCA 0.8.. The GIA Cert is 7136822029.. Selling for $5.5k with side diamonds setting.. Does the polish affect this diamond a lot? Will it still sparkle?

 

[DawnMin]

So is the following stone a gd buy?
0.73ct E VS2, cut E, sym E, pol VG, HCA 0.8.. The GIA Cert is 7136822029.. Selling for $5.5k with side diamonds setting.. Does the polish affect this diamond a lot? Will it still sparkle?

It really depends what you and your other half wants
Polish basically means how well each surface facet is polished, if the facet lines meet, or polish lines found on the surface that can hinder the diamonds performance

It's not something you will see on the spot, but you'd feel like you need to clean your diamond because there's something just not right or it doesn't look "clean"

Yes it will sparkle, all diamonds do. But to what extent? You need to know what you want or what she wants

 

[shawnlau]

It really depends what you and your other half wants
Polish basically means how well each surface facet is polished, if the facet lines meet, or polish lines found on the surface that can hinder the diamonds performance

It's not something you will see on the spot, but you'd feel like you need to clean your diamond because there's something just not right or it doesn't look "clean"

Yes it will sparkle, all diamonds do. But to what extent? You need to know what you want or what she wants

How about fluorescene with faint? Does faint affect the diamond a lot?

 

[DawnMin]

How about fluorescene with faint? Does faint affect the diamond a lot?

Mostly not with faint I have seen some that when you look closely it does not look as "white" as one with none, although rare. But the price difference is usually so little that to stay mind clean I'd go with none.

 

[shawnlau]

Mostly not with faint I have seen some that when you look closely it does not look as "white" as one with none, although rare. But the price difference is usually so little that to stay mind clean I'd go with none.

Ok.. Thanks..

 

[Berjaya_080]

considering to have a 1 ct diamond with side diamonds design or classic design

is it too fanciful for a woman with age to have side diamonds on the ring design?
my husband comments side diamonds are for younger girls.. can i get some feedback on that?

 

[Cotton1]

You should compile it together with your part 1 so that newer readers don't have to keep scrolling back to find it

Kk.. Will post it altogether