Help with Firescope Image

[Midnight]

Can someone help me interpret the quality of this diamond based on its Firescope image?

 

[Greentree]

It's a well cut diamond, but it's not an EightStar. So don't be paying EightStar prices for it.

 

[Midnight]

Does the rules in interpreting an IdealScope image apply to the FireScope?

 

[Greentree]

I'll defer to Garry Holloway on that issue. Since they are not the same instrument, I doubt the rules would be exactly the same. Maybe a search of PriceScope would turn up an old thread on the subject.

 

[jesrush]

Midnight,

Go and read this:

http://www.goodoldgold.com/the_idealscope_firescope_tm.htm

It looks like a very good (almost excellent) cut. There is no substantial leakage. The only thing preventing it from being excellent is that the "hotspots" (the little black triangles) in between the arrows are a little small.

-J

 

[jesrush]

and inconsistent (the hotspots). Some are large, some small.

 

[Superidealist]

The interpretation will depend on who is doing the interpreting. Jonathan would interpret it one way, Garry another, and Richard von Sternberg another still.

 

[Midnight]

Superidealist,

If you are correct, then is there any use of the Firescope, Lightscope, or the IdealScope if there are no set standards? It is just one tool to help consumer determine the quality of the purchase. I hope the "Experts" you noted above must agree to some set "standards."

 

[valeria101]

I would use the IdealScope chart for all these. The difference between these tools would not prevent an educated opinion about the picture you posted and the diamond: teh meaning of the black, white and red color scheme remains the same and symmetry is there for all to see.

As far as I know, the most glaring difference between these types of images is precision - some would allow to grade H&A (according to the draconian standard described in the tutorial here) and some not. But all allow to judge brilliance - which is still a good thing to know.

So... this is no H&A - so no concern about the hair splitting details. The thick dark arrows and "hot spots" indicate good contrast and performance in direct light. Symmetry is another question - as far as I can tell, either this stone has it at most "Good" on the GIA cert, or the photo is a tad shaky. The contrast would likely make this a fiery stone - especially if it does come with a relatively high pavilion (something you must know). I would not expect this to have much impact on the brilliance of this diamond - this is a choice stone and could be a great deal to boot.

Just my 0.2, of course.


As for the mention of "Eight Star prices" - what do I know? Eight Star does not care to make their pricing public. This one diamond obviously deserves a premium over a stone with less great ligth return.

 

[Midnight]

Greentree,

You are right!

It is not a EightStar.

valeria101,

It is actually a AGS000, was told it's a H&A. You are probably right the Firescope image is slightly tilted and fuzzy. Specs:

1.30 ct E IF
Dia: 7.00mm
Table: 54.1
Total Depth: 61.6
Pav Depth: 43.0
Crown Angle: 34.9
Pav Angle: 40.9
Girdle: Thin-Thick
Pointed, no flourescent

Does it look like a H&A? Angles a bit "deep/steep"? Any other negative?

 

[motcs]

I think you need to look at both the heart and arrows pictures to thoroughly determine the H&A quality. The crown angle looks a bit steep for me, but you need to really look at the diamond yourself and judge its performance visually.

 

[elmo]

----------------
On 8/21/2004 12:42:34 PM Midnight wrote:

It is actually a AGS000...

Girdle: Thin-Thick

----------------

Actually unless it's a typo and is really 'slightly thick' this is technically not AGS000.

 

[Dancing Fire]

----------------
On 8/21/2004 12:42:34 PM Midnight wrote:

Greentree,

You are right!

It is not a EightStar.

valeria101,

It is actually a AGS000, was told it's a H&A. You are probably right the Firescope image is slightly tilted and fuzzy. Specs:

1.30 ct E IF
Dia: 7.00mm
Table: 54.1
Total Depth: 61.6
Pav Depth: 43.0
Crown Angle: 34.9
Pav Angle: 40.9
Girdle: Thin-Thick
Pointed, no flourescent

Does it look like a H&A? Angles a bit 'deep/steep'? Any other negative?





----------------

midnight
negative: maybe the thin-thick girdle ?

 

[jesrush]

1.9 HCA... like I said before you posted the numbers, a very good (almost excellent) cut. You can probably find something a little hotter, closer to HCA1. As with all stones, make sure you have a return guarantee if you haven't seen it in person.

-J

 

[Midnight]

"Actually unless it's a typo and is really 'slightly thick' this is technically not AGS000."

----------------------------
Elmo,

Min Girdle 0.7
Max Girdle 1.7

You are right, that it's is not technically a "AGS000" because it's is NOT a D color but instead a E color. I thought this Min & Max Girdle is within AGS "Ideal" or "0" grade?

 

[Midnight]

Elmo,

Sorry, the Girdle Min and Max is actually within AGS "thin to medium" unstead of "thin-THICK"...typo

 

[valeria101]

----------------
On 8/21/2004 12:42:34 PM Midnight wrote:



Angles a bit 'deep/steep'? Any other negative?

----------------

I don't think this is "negative"... this stone has those angles just so

The extra bit of depth does not seem to affect size too much (looking at H&As between 1.28 and 1.32cts listed around here for ref.) - at most a tenth of a mm went off, and I woudl not call that visible.

If the price compares favorably with that of branded harts and Arrows, this is it. I do not think the stone will look any different than those. But since the premium for H&A depends on slight cut characteristics that need magnification to become visible, this piece may not be up to the strictest standard and price, but just close.

On paper, the AGS0 cut grade may require a narrower interbal of girdle thickness (according to the other posts, I frankly do not know those numbers by hart) but since ths piece is not touted as an AGS0 without the AGS cert and the girdle thickness measured by sarin seems fine, why bother? Well, unless AGS's opinion matters allot for you.

Can you obtain pictures of this stone?