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Please advise on diamond: 1.5 - 1.8 carat, round, G+ color, VS2+, ~18K budget

likebreath

Rough_Rock
Joined
Dec 9, 2019
Messages
2
Dear PriceScope fellows,

I am here to request your comments on loose diamond selection: either general selection advice or specific diamond will be appreciated.

Shape: Round
Carat: 1.5 - 1.8 (1.7 ideally)
Color: G+
Clarity: VS2+ (eye clean)
Budget: ~$18K
Fluorescence: None

So far found this diamond from Blue nile interesting: https://www.bluenile.com/diamond-details/LD09355302?refTab=DIAMONDS&track=viewDiamondDetails&action=sameTab
HCA result on this stone for your quick reference:
HCA.PNG


Thanks a lot.

PS: found this forum by reading a paper on diamond selection and had a lot of fun: http://pages.cs.wisc.edu/~mjr/engagement.shtml?Engagement
 

mission1

Shiny_Rock
Premium
Joined
Nov 17, 2019
Messages
117
There's a huge amount of rubbish being spouted in that original "research paper' link, e.g. "Jana’s ring features a 0.74ct Fancy Intense Blue diamond. This diamond would easily cost $100,000 if it were not synthetic, and likely more because of its good clarity and cut". :-o:lol:
 
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TODiamonds

Shiny_Rock
Joined
Jul 27, 2019
Messages
260
The stone is decent. More obstruction than I'd like to see, but other than that hard to nit pick. The spread is very good for the ct weight (I bought one similar size). If you're going for it, given the black crystal, I would suggest calling them to ask for a vault inspection to confirm it's eye clean. It will take them a few days.

I will say Astor is generally a rip-off price wise, this one's almost as much as the branded stones linked by coda above, so it would be ideal if you could find something like this that hasn't been "Astorized".
 

AV_

Ideal_Rock
Joined
Aug 5, 2018
Messages
2,897
@mission1 The 100K quote does not seem entirely out of this world.
 

whitewave

Ideal_Rock
Premium
Joined
Feb 29, 2012
Messages
8,814

AV_

Ideal_Rock
Joined
Aug 5, 2018
Messages
2,897
@likebreath From the stones already mentioned, I would pick one of the HPD - if only because I know better what their brand cut does. A colourless option with some fluorescence & still nearly as good cut - HCA & a crisp pattern of reflections, could change my mind & I have not looked.

2c
 

mission1

Shiny_Rock
Premium
Joined
Nov 17, 2019
Messages
117
Ok, fair enough! $100k seemed like a high sum for a 'G' polish, 'VG' symmetry 0.74ct VVS1 fancy blue round diamond - but I am (very clearly) not an expert. Will leave further replies on this thread to those that know what they're talking about!
 
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AV_

Ideal_Rock
Joined
Aug 5, 2018
Messages
2,897
Naively, I would ask to see this: www There are many more listings without images - who knows why! I hardly expect this to be available, yet,
 
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likebreath

Rough_Rock
Joined
Dec 9, 2019
Messages
2
Amazing folks. Thanks a lot.

Any detailed comments on how to compare the stone from blue nile here and the two CBI stones?

Links for your quick reference:
1. Blue Nile: https://www.bluenile.com/diamond-details/LD13118067
2. CBI: https://www.hpdiamonds.com/en-us/diamonddetail/HPD10562

Also, for the setting, we are looking something similar to Tiffany Novo. She likes 4-prong, thin band (2mm), pave. I found two potential settings on Blue Nile. Anything similar on HPD or WhiteFlash? Any comments will be appreciated. Thank you.

1. Riviera Cathedral Pave: https://www.bluenile.com/build-your-own-ring/riviera-cathedral-pave-diamond-engagement-ring-platinum_75009
2. Riviera Pavé: https://www.bluenile.com/build-your-own-ring/riviera-pave-diamond-engagement-ring-in-platinum_60613
 
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whitewave

Ideal_Rock
Premium
Joined
Feb 29, 2012
Messages
8,814
Amazing folks. Thanks a lot.

Any detailed comments on how to compare the stone from blue nile here and the two CBI stones?

Links for your quick reference:
1. Blue Nile: https://www.bluenile.com/diamond-details/LD13118067
2. CBI: https://www.hpdiamonds.com/en-us/diamonddetail/HPD10562

Also, for the setting, we are looking something similar to Tiffany Novo. She likes 4-prong, thin band (2mm), pave. I found two potential settings on Blue Nile. Anything similar on HPD or WhiteFlash? Any comments will be appreciated. Thank you.

1. Riviera Cathedral Pave: https://www.bluenile.com/build-your-own-ring/riviera-cathedral-pave-diamond-engagement-ring-platinum_75009
2. Riviera Pavé: https://www.bluenile.com/build-your-own-ring/riviera-pave-diamond-engagement-ring-in-platinum_60613
Alrighty, let me say this, I have round brilliants from both blue Nile and CBI. The blue Nile studs have “near super ideal stats” and the CBIs out perform them. You can tell. A 2 year old could pick it out.

The CBIs glow in low light. They have edge to edge brilliance. Paul is so darn picky with his rough that it’s OCD level. CBIs are the perfectly cut round brilliant and I would put my money on it.

The question is, do you want that. This is all about what you are picking out for your intended.

You can get close, but you can’t get CBI level performance in a non CBI stone.

Edited: the blue Nile stone is pretty. I’m not disparaging it.
 

istase2000

Shiny_Rock
Joined
Sep 9, 2012
Messages
327
This post might help, there's a video comparing GIA triple excellent, CBI and ACA. I know a lot of people here have sworn there's something more special about CBIs :)
 

KKJohnson

Brilliant_Rock
Premium
Joined
Aug 15, 2017
Messages
1,625
For sure the
Without a doubt CBI has ridiculously beautiful stones, the Blue Nile option was just a more budget friendly option that will also be a wonderful stone.CBI has great customer service and their upgrade program is one of the best out there if you ever think that an upgrade for an anniversary is in the future.

I just never feel like you can get a "deal" with CBI due to the strict cutting parameters, their stones of the same carat weight are going to all be the same mm. Its just the clarity plots that are vary from stone to stone. I do think if you take the gamble of a custom cut then you have the chance of coming out ahead with CBI or Whiteflash, they must meet the specified purchase requirements but anything extra (size, color grading, clarity) is at no add'l cost if it exceeds the purchase order.
CBI is an amaz
 

AV_

Ideal_Rock
Joined
Aug 5, 2018
Messages
2,897
I do not expect listed stones to have perfect finish & it is a nice thought to know that what is done by hand about a diamond is, intently, a technical achievement.

There are other ways to be happy about some diamond.
 
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