Find your diamond
Find your jewelry
shape
carat
color
clarity

Need input on a few rounds...

S

S1C EM

Rough_Rock
Trade
Joined
Jan 4, 2010
Messages
74
I put this in another thread, but it's obviously getting looked over.

Thoughts on these rounds:

1. https://www.bluenile.com/diamond-details/LD09764177?track=Detlink0

2. https://www.bluenile.com/diamond-details/LD09789636?track=Detlink1

3. https://www.bluenile.com/diamond-details/LD09484336?track=Detlink3

Out of those three, I think I'm leaning to #1. The stats look really good, as best I can tell. It does come back on the HCA with a score of 2.1 which is lower than I expected given that it hits dead in the green and where the tool indicates is best for rings. Kind of odd to me. On the Diamond Screener cut estimator, it falls dead inside of GIA EX and AGS Ideal as well. Unfortunately, Blue Nile tells me they don't offer ASET or IS images.:(2

What say the experts?
 
Just going by the specs i'd go with #3. I love a stone with a high crown and small table...that just me...=)2
 
By the numbers, which is only one piece of the puzzle because it doesn't take optical precision into account, I would rank the diamonds in this order of preference:

LD09484336: the 1.30 carat, G-color, VVS-2 clarity, GIA Excellent cut round diamond from Blue Nile has a pavilion angle of 40.8 degrees, which is combined with a pavilion depth of 43% and should produce a high volume of light return.

The 35.5 degree / 16% crown height is a little steep for my preferences and this can cause the table facet of the diamond to look a little darker under diffused light and the sparkle of the diamond might flatten out a little. However, round diamonds with this steeper crown height tend to look incredible under the pin-fire halogen type lighting used by most jewelry stores.

Click on the icon of a line drawing of a diamond in the face-up position that appears beneath the video and you will be able to view the diamond in the face-up position. Notice that the pavilion main facets (arrows pattern) in the relative 3 o'clock and ten o'clock positions are translucent.

Left click your mouse on the video and hold it, while dragging the diamond left and right and notice that those pavilion mains do not fire and reflect back the dark color of the camera lens until the diamond is tilted back pretty far to the right or left.

This is not necessarily something which is good, nor bad but simply represent characteristics of the diamond created by a combination of proportions and the degree of optical precision. These characteristics factor into the price of the diamond and should be taken into account as part of your selection process.

LD09764177: the 1.32 carat, G-color, VVS-2 clarity, GIA Excellent cut round diamond from Blue Nile has a pavilion angle of 41.2 degrees which is combined with a pavilion depth of 43.5% which I find to be the critical tipping point where light begins not to strike fully off the pavilion facets. Thus, this diamond is not likely to exhibit the same high degree of light return as LD09484336.

The crown angle of 32.5 degrees is shallow by my standards and is likely to create a higher degree of brilliance but at the expense of dispersion. Blue Nile does not provide a video for this diamond, but the supplier does provide the following images:

blue-nile-diamond-reviews-via-niceice-LD09764177-gia-2276438953.jpg

I would prefer to see a higher degree of saturation under the table facet in the ASET Scope image (upper right corner) but obviously, it is up to you to determine the degree of light performance and consistency of light return that is right for your desires and preferences.

LD09789636: the 1.30 carat, G-color, VVS-2 clarity, GIA Excellent cut round diamond from Blue Nile has a pavilion depth of 44% which is beyond that critical tipping point of 43.5% where I find that light begins not to strike fully off of the pavilion facets. So, you can probably guess why I placed this diamond in the third position within this group.

LD09736458: is a 1.20 carat, G-color, VVS-2 clarity, GIA Excellent cut round diamond from Blue Nile which is closer to what I look for in an ideal cut diamond. The pavilion angle of 40.8 degrees should produce a high volume of light return. While the 34.0 degree crown angle is likely to produce a hint more brilliance as opposed to the virtual balance of brilliance and dispersion that you might find in a crown angle between 34.3 - 35.0 degrees.

There are not any reflector scope images available for this diamond, but I think it faces up better in the clarity video, which again you can see straight-on if you click the icon of a line drawing of a diamond in the face-up position beneath the video.
 
Well, good info! Glad I asked, because I'd have been going in the wrong direction.:lol:

We've still got a lot of time, so I will likely throw a few more up here in the coming days/weeks. It seems that all of these have one slight deficiency or another, so probably best to keep looking for now.

Thank you all!
 
#3 is pretty, But it scores a 2.7 HCA so keep looking.
 
Use the advanced search to input these numbers:
Gia excellent:

Depth 60-62.3

Table 54-58

Pavilion 40.6 to 40.9

Crown 34-35

Then use the HCA tool to toss anything above 2: https://www.pricescope.com/tools/hca

Or you can just go to whiteflash.com or hpdiamonds.com and pick an inhouse diamond
 
Diamond buying has a pretty steep learning curve. The good news is that there are a lot of great tutorials and guides floating around out there and lots of great people here on PS to help you along the way... Keep asking those questions! You help more than yourself when you do! :-)
 
Tell us what your parameters are:
Budget, color, clarity etc

What kind of setting?
 
whitewave said:
Tell us what your parameters are:
Budget, color, clarity etc

What kind of setting?
Click to expand...

Right now, it's looking like a RB, 1.25ct or greater. Budget will be about $10k. Setting is not terribly important just yet.
 
So 10k is for diamond only? Has she dropped hints or have you gone shopping together?
 
Todd Gray said:
Diamond buying has a pretty steep learning curve. The good news is that there are a lot of great tutorials and guides floating around out there and lots of great people here on PS to help you along the way... Keep asking those questions! You help more than yourself when you do! :)
Click to expand...

Indeed! All of this info is SUPER helpful! I wish I had done all of this when I bought the other stone. I have no doubt that this will end up being a better purchase all the way around (and we were quite happy with the other one).
 
whitewave said:
Use the advanced search to input these numbers:
Gia excellent:

Depth 60-62.3

Table 54-58

Pavilion 40.6 to 40.9

Crown 34-35

Then use the HCA tool to toss anything above 2: https://www.pricescope.com/tools/hca

Or you can just go to whiteflash.com or hpdiamonds.com and pick an inhouse diamond
Click to expand...

Thank you for putting that into one post. This is going to come in very handy!
 
I will put a personal disclaimer of companies I have worked with and recommend: Blue Nile, B2C, High Performance diamonds and I have seen Whiteflash diamonds in person and they were distracting and gorgeous; I am saving up for a whiteflash ACA bracelet. I have also made contact with Brian Gavin Diamonds about a project.

So Blue Nile has quality diamonds, but you have to search them out and it ia a lot of work.

Brian Gavin, White Flash and High Performance Diamonds have ideals and super ideal diamonds and of the three, WF and HPD have better trade in policies. It is much easier to pick a quality diamond from them.

Would you like to see some super ideal cut diamonds to compare with ideal diamonds?

Sorry for any typos in truck ..bumpy
 
whitewave said:
Would you like to see some super ideal cut diamonds to compare with ideal diamonds?
Click to expand...

I assume it would result in a reduced size, but sure!
 
@diamondseeker2006 Do you have time to pull some white flash, 10k largest possible for budget?
 
Did you find any you want us to look at?
 
whitewave said:
Did you find any you want us to look at?
Click to expand...

Not yet, but about to look at your suggestion above. Also, why do so many JA diamonds in the price range have a pavilion of 43.5 and higher?
 
S1C EM said:
Not yet, but about to look at your suggestion above. Also, why do so many JA diamonds in the price range have a pavilion of 43.5 and higher?
Click to expand...
I'm not sure unless they are more like 60/60 where table and depth are around 60. This is sort of how the traditional brick and mortar stores stock diamonds... gives a spreadier diamond with more white flashes. I don't know the specifics of a 43.5 pavillion. @diamondseeker2006 knows a lot about the angles...

I'll pull some more but am about to get busy for the day....
 
Okay, just looked at that one. Hard to say. I'd be a little concerned about the crystal they show on the report and its positioning. I can't really see anything in the video, though.
 
whitewave said:
I'm not sure unless they are more like 60/60 where table and depth are around 60. This is sort of how the traditional brick and mortar stores stock diamonds... gives a spreadier diamond with more white flashes. I don't know the specifics of a 43.5 pavillion. @diamondseeker2006 knows a lot about the angles...

I'll pull some more but am about to get busy for the day....
Click to expand...

Absolutely NO rush! Thank you!
 
Continuing from Blue Nile:

1.40 I vs2 medium blue fluro
.9 HCA
$9302
7.15 x 7.11 x 4.41
https://www.bluenile.com/diamond-details/LD03306651?refTab=DIAMONDS

1.25 G VS2
.7 HCA
$9327
6.92 x 6.94 x 4.24 mm
https://www.bluenile.com/diamond-details/LD09463219?refTab=DIAMONDS

1.51 I VVS1 medium blue fluro
$9912
1.3 HCA
7.33 x 7.36 x 4.56
https://www.bluenile.com/diamond-details/LD09732029?refTab=DIAMONDS

1.32 G VS2
$9626
1.5 HCA
7.06 x 7.02 x 4.34 mm
https://www.bluenile.com/diamond-details/LD09365718?refTab=DIAMONDS
 
Do you have an opinion about fluro? Brian Gavin has a blue line
 
S1C EM said:
Okay, just looked at that one. Hard to say. I'd be a little concerned about the crystal they show on the report and its positioning. I can't really see anything in the video, though.
Click to expand...

It shouldn't be an issue with a VS1..... but I pulled a bunch more to look at
 
whitewave said:
Do you have an opinion about fluro? Brian Gavin has a blue line
Click to expand...

What are your thoughts? Is that what the BG Blue line is, just fluro diamonds? My wife's original one had a strong fluro grading, but it never seemed to suffer in terms of performance.
 
S1C EM said:
What are your thoughts? Is that what the BG Blue line is, just fluro diamonds? My wife's original one had a strong fluro grading, but it never seemed to suffer in terms of performance.
Click to expand...

It's a cool party trick. All of theirs have been vetted to not impact performance
 
You must log in or register to reply here.
GET 3 FREE HCA RESULTS JOIN THE FORUM. ASK FOR HELP
Jewelry Blog
PriceScope-Concierge-Ad
Find prime cuts.
Top