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Knot on Crown, Good Deal?

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offthemarket

Rough_Rock
Joined
May 29, 2018
Messages
4
Thinking of Purchasing ... Any Advice?

DIAMOND INFORMATION
SHAPE: Round
CARAT WEIGHT: 1.50
COLOR: D
CLARITY: SI1
CUT: Excellent
POLISH: Excellent
SYMMETRY: Excellent
FLUORESCENCE: None
L/W/D (MM): 7.31*7.26*4.58
L/W RATIO: 1.01
DEPTH %: 62.80
GIRDLE: Medium - Slightly Thick
TABLE %: 55.00
CULET: None
CERTIFICATE: GIA
CROWN ∠: 35.00
CROWN %: 15.5
PAVILION ∠: 40.80
PAVILION %: 43.00

https://www.jamesallen.com/loose-di...d-color-si1-clarity-excellent-cut-sku-4613686GIA Cert.jpg
 
A knot is a deal breaker for sure. I am guessing the price is low and that is why you're asking. The stone is also too deep and faces up small for a 1.5 ct stone. You want close to 7.4mm for the diameter and no deeper than 62.3 or maybe 62.4 in depth. Less than 62 is better for the diameter.
 
As mentioned by @diamondseeker2006, knots are a deal-breaker for me, especially large knots on the table of the diamond. All knots are surface breaking (that's the definition of them: Surface-breaking crystals) and there's really no way of knowing how structurally sound the knot would be in the event of an impact. All it would take is one instance of hitting it the wrong way and all of a sudden the stone would have a cavity where the knot once was.

What are you looking for in a stone? Perhaps we can help you find one. :)
 
Hard pass. It's not eye clean and will look like it's perpetually dirty with those knots on the table.
 
Knots can fill up and lower the grading of the diamond in the future
 
Pass on the knot.

Don't know your budget, but here are a few alternates I like. All super ideal cut so they will face up nice & white and have tons of sparkle.

1.512ct, H, SI2 (same weight, slightly bigger dimensions)
https://www.briangavindiamonds.com/...ls/1.512-h-si2-round-diamond-ags-104093051006

1.411ct, H, VS1 (although less carat weight, the measurements are nearly identical)
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3961917.htm

1.443ct, H, VS2 (same deal on the weight/dimensions)
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3947713.htm

1.408ct, E, VS2 (dimensions are just slightly smaller)
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3947671.htm

1.618ct, H, VS2 (more weight & larger dimensions)
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3858601.htm
 
Ok, thank you all, great feedback You've likely saved me from making a big mistake ... Can I asked for feedback on one more? I am trying to stick with a D-E colour stone in the 1.50 and up range ... I found the following stone with similar angles however very it has very strong fluorescence. What are your thoughts on this?
DIAMOND INFORMATION
SHAPE: Round
CARAT WEIGHT: 1.50
COLOR: E
CLARITY: VS2
CUT: Excellent
POLISH: Excellent
SYMMETRY: Excellent
FLUORESCENCE: Strong
L/W/D (MM): 7.34*7.30*4.55
L/W RATIO: 1.01
DEPTH %: 62.10
GIRDLE: Medium - Slightly Thick
TABLE %: 56.00
CULET: None
CERTIFICATE: GIA
CROWN ∠: 35.00
CROWN %: 15.50
PAVILION ∠: 40.80
PAVILION %: 43.00

HCA 1.6

Price - $12,320

https://www.jamesallen.com/loose-di...e-color-vs2-clarity-excellent-cut-sku-5074264

5074264cert.png
 
Hi @offthemarket, good job picking out a diamond with good proportions this time! But strong fluorescence would also be a deal-breaker for me in a high-colored stone. There are a few who prefer this look, but SBF is more likely to lead to some undesirable effects in very high colored stones (milky appearance in sunlight).

If I were in your position looking for a D-E stone, I would be on that E, VS2 from WhiteFlash posted by @sledge like white on rice. I don't think you would notice the .1mm difference in size between this one and the 1.5 carat stones you were looking at.
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3947671.htm

Is it out of your budget range? Could you post your preferred budget range so we could help you further? :) I'm not seeing much in the D-E range on James Allen right now though that is much cheaper than the option from WF.
 
The stone I bought from BGD is part of their Blue series and has medium fluor; however, the color is H. I tend to agree with @TreeScientist in the fact that looking at a D-E color I would be a little leery of strong fluor. That said, it might be worth putting on reserve and asking them to provide an idealscope image and also to pull and have their gemologist confirm how the fluor is/is not affecting the stone.

FYI....for this last JA stone....

upload_2018-5-31_12-40-13.png

If the budget of the E stone from WF is too much for your budget, here is another that is a G color. Great size and ACA so will be gorgeous. Good cert too for an SI1. Being a super ideal cut, it will face up a little whiter than G, although it would be very hard for an untrained professional to tell the difference unless you had a D/E diamond next to it to compare. It would be slightly easier if you turn on the side.

Just food for thought.

https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3983288.htm
 
hi TreeScientist thanks for the feedback .. unfortunately that option is out of my budget ..i want to stay under 12.5k if at all possible ... tried hard to pick the right dimensions, glad to see im close to a good pick . : ) i see differing opinions on the fluorescence on colourless stones from don't do it to no big deal ...why is that?
 
offthemarket said:
hi TreeScientist thanks for the feedback .. unfortunately that option is out of my budget ..i want to stay under 12.5k if at all possible ... tried hard to pick the right dimensions, glad to see im close to a good pick . : ) i see differing opinions on the fluorescence on colourless stones from don't do it to no big deal ...why is that?
Click to expand...

You'll hear many different opinions on the fluorescence issue. Whether or not SBF and VSBF causes milkiness is largely a matter of personal perception of what exactly is "milky," but with SBF and a higher color, many believe there's a much higher chance of noticing the negative effects of fluorescence. Not to mention the stone will very likely look slightly blue-ish under sunlight. Blue and yellow light are complementary colors in additive color mixing, meaning that combining the two (like in slightly yellowish stones in the near-colorless range) creates white. In stones that don't transform a bit of the incoming blue light to yellow light (meaning colorless diamonds) the blue from SBF will be more prominent. Again, whether or not this would be desirable is largely a matter of personal preference, but some women like their diamond to face-up white. Others like the blue glow. But I would check with your fiancee-to-be about this before purchasing a high-color diamond with SBF, and I would also recommend seeing it in person and comparing it under sunlight next to a diamond without SBF to make sure that there were no transparency issues with it.

Hope that helps!
 
TreeScientist, your suggestion from B2C looks good ...I'll ask for an image ...BTW JA just sent me an image of the strong fluorescence stone I inquired on .. do you (or any others ) have thoughts on the image (just soi know what to look for going forward) Thanks !
5074264.jpg
 

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Is the high color culturally important? If not, are you just worried about tint? If the latter, dropping to G would be very safe with no visible tint. H is still very white and I like H colors for the whiteness without "coldness". Others love that cold look of higher color. I color is when most can begin to see tint (from the side). With your budget, I'd prefer this one due to the superior performance and very white G color.

https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3983288.htm
https://www.jamesallen.com/loose-di...g-color-vs2-clarity-excellent-cut-sku-4718969

This would give you a big break on your budget and it just missed being an ACA like the one above.
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3950139.htm

If higher color is critical.
https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3995535.htm

This has similar performance as the IS in post #15, but I like this one's video and proportions quite a bit.
https://www.jamesallen.com/loose-di...color-vs1-clarity-true-hearts-cut-sku-4230907

Here's a great H color that is huge (1.66!) and gorgeous clarity and cut.
https://www.jamesallen.com/loose-di...h-color-vs1-clarity-excellent-cut-sku-4632202
 
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