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Help Evaluating this 2.59ct, E, VS1 Oval – GCAL8x Certificate Included

sparkleseeker111

Rough_Rock
Joined
Jan 10, 2025
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I’m in the process of selecting a diamond for an engagement ring and would greatly appreciate your insights. I’ve come across a diamond that seems promising, but as this is a significant investment, I want to ensure I’m making an informed decision. What are overall impressions on performance? Anything negative standout?

Diamond Details:

• Carat Weight: 2.59
• Color Grade: E
• Clarity Grade: VS
• Cut Grade: 8x
• Fluorescence: None

Here’s the GCAL certificate: GCAL Certificate - 340310037

Thank you in advance for your help!
 
Hello and welcome to PriceScope, sparkleseeker111!

I see that it is (or was) listed at JustCarats for about $2900.
My opinion is that I think it shows you much bowtie effect and CVD graining for that kind of price tag territory.
I just ripped through 2.4+ carat HPHT D-F VS1+ ovals graded by GIA and found some worth checking out...and they are between $2000-3000.
You'll be able to find them at the popular online sellers, pick the one you want to buy from, and ask for a price match to the lowest listed seller.

I won't post them right now since it's the middle of the night and chances would vastly increase that they wouldn't be available due to anonymous lurkers hanging about, so let us know when you're online after the sun rises and I'll post them so that you can move fast if one catches your eyes.
 
Hello and welcome to PriceScope, sparkleseeker111!

I see that it is (or was) listed at JustCarats for about $2900.
My opinion is that I think it shows you much bowtie effect and CVD graining for that kind of price tag territory.
I just ripped through 2.4+ carat HPHT D-F VS1+ ovals graded by GIA and found some worth checking out...and they are between $2000-3000.
You'll be able to find them at the popular online sellers, pick the one you want to buy from, and ask for a price match to the lowest listed seller.

I won't post them right now since it's the middle of the night and chances would vastly increase that they wouldn't be available due to anonymous lurkers hanging about, so let us know when you're online after the sun rises and I'll post them so that you can move fast if one catches your eyes.

Not sure where you saw graining - maybe in a supplier video DW?
But I can not see why you thought there is a Bow Tie?
Black and Green are the ASET or Ideal-Scope equivalents of the Bow Tie / observer dark zones in GCAL's ridiculously complex thingy.
1736662865190.png
1736662833873.png
 
Not sure where you saw graining - maybe in a supplier video DW?
But I can not see why you thought there is a Bow Tie?
Black and Green are the ASET or Ideal-Scope equivalents of the Bow Tie / observer dark zones in GCAL's ridiculously complex thingy.
1736662865190.png
1736662833873.png

Thank you for explaining the GCAL scopy thingy, Garry.

I was going off of the rotational video on the GCAL page for this diamond.

Screenshot_20250112-011802-832.png

Screenshot_20250112-011722-698.png

Screenshot_20250112-011613-451.png

Screenshot_20250112-011523-152.png
 
Thank you for explaining the GCAL scopy thingy, Garry.

I was going off of the rotational video on the GCAL page for this diamond.

Screenshot_20250112-011802-832.png

Screenshot_20250112-011722-698.png

Screenshot_20250112-011613-451.png

Screenshot_20250112-011523-152.png

They.turn on and off like the 8 stars in an ideal round brilliant DW
 
Can you capture a still and show it please?

Already did, Garry...the bottom three pictures in my previous post show what looks to be graining in the color-flared facets. I circled one of them in red.
 
Already did, Garry...the bottom three pictures in my previous post show what looks to be graining in the color-flared facets. I circled one of them in red.

aha - definitely a no go - well picked DW.
BTW I have often wondered why the graining shows up best on firey virtual facets?
 
aha - definitely a no go - well picked DW.
BTW I have often wondered why the graining shows up best on firey virtual facets?

Perhaps it's due to being a tighter band of visible light since it's dispersed instead of wider spectrum?
 
aha - definitely a no go - well picked DW.
BTW I have often wondered why the graining shows up best on firey virtual facets?

They are catching a led and direct led lighting shows small virtual facets and small features more than strongly diffused lighting.
Since most leds have a blue tint its blue more often than not.
If they are using rgb leds you get more colors.

Obstructed areas will also show it as the scattered light paths show light from other light sources than the obstructing source.
Obstruction in the videos at times is what ever color shirt the operator is wearing plus the usual grey and black.
That just adds to the fun.
 
Last edited:
They are catching a led and direct led lighting shows small virtual facets and small features more than strongly diffused lighting.
Since most leds have a blue tint its blue more often than not.
If they are using rgb leds you get more colors.

Obstructed areas will also show it as the scattered light paths show light from other light sources than the obstructing source.
Obstruction in the videos at times is what ever color shirt the operator is wearing plus the usual grey and black.
That just adds to the fun.

like the way strong LED's make facet edges appear abraded?
1736718803927.png

(This stone probably is abraded - but you know what I mean)
 
like the way strong LED's make facet edges appear abraded?
1736718803927.png

(This stone probably is abraded - but you know what I mean)

looks more like post processing gone wrong to me.
That said when I started viewing more diamonds in person back in the day just how bad facet junctions can be and get ex/ex id/id was shocking.
 
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