Diamond help for JasonSun!

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ame

ame

O.G.
Mar 22, 2007
13,432
1,039
#1
I have 2 rings i'm choosing from Tiffany, not sure which one is better, so any help would be greatly appreciated.

A) 2.05/F/VS1; Depth %: 61.4; Table: 57%; Crown angle: 34.1; Pavillion Angle: 41.2; thin to medium griddle. Excellent Polish/ symmetry and cut.

b) 2.01/F/VS1; Depth %: 62.3; Table: 56%; Crown angle: 35.3; Pavilion Angle: 40.7; medium griddle. Excellent Polish/ symmetry and cut.
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Normally I would say #1 for the angles, but given the HCA score on the 2nd one is better, per dintegrity's check, I am going to agree with her on going with the 2nd one. The HCA really does help weed them out.

Have you seen eitheri n person? I would make your decision based on what you think in person vs just numbers also.
 
#3
ame, oh sweetie, you are so nice to open a thread for JasonSun.. Very kind of you~~ Hopefully he see this thread that you specially opened up for him :)

To pluck in what I did for JasonSun:

dinitegrity said:
Does the dimension of both diamonds differs alot?

A) The HCA Score for it is 3.1 (Very good - Worth buying if price is right)

Score 'very good' in all aspect such as 'Light Return', 'Fire', 'Scintillation' and 'Spread'.

But because you are looking at branded Tiffany (I don't think the price would be worth it no matter how much it cost). Sorry as I am not a big fan of branded diamonds since they are all gonna be grade by same gemology institute like GIA.

B) The HCA Score is 1.7 (Excellent - Within TIC range)

Score 'Excellent' in 'Light Return', 'Fire', 'Scintillation' and has a Very Good Spread.

IMO, B is a better diamond as without viewing the diamond IRL, I relies heavily on the HCA score to eliminate diamonds. The HCA is a good rejection tools. And my diamond really sparkles like mad with a Excellent HCA score and has Excellent 'Light Return', 'Fire', 'Scintillation' with a Very Good Spread too..

You could view here to take a look at mine:

http://forum.purseblog.com/the-jewelry-box/e-ring-upgrade-warning-picture-overload-706738.html

HCA Note:

A score below 2 (Excellent) means you have eliminated known poor performers (more than 95% of all diamonds). Your own personal preference may be for a diamond with an HCA score of 1.5 more rather than one with a lower score of say 0.5.

Hope it helps
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#4
Excellent. Glad you did. I was going to if you didn't. :)

You can't always rely on numbers. Sometimes the numbers don't equal on paper what should be ideal, but to the eyes it looks amazing, and sometimes the numbers on paper say ideal and it does not look good.
 
#5
ame said:
Excellent. Glad you did. I was going to if you didn't. :)

You can't always rely on numbers. Sometimes the numbers don't equal on paper what should be ideal, but to the eyes it looks amazing, and sometimes the numbers on paper say ideal and it does not look good.
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Yeah I understand that ;) saw you at another site too
JasonSun went missing. LOL :graucho:
 
#6
One has to see a diamond in person and put it on their finger and check it in different lights too.
I have a solitaire (gift from my colleagues from many years ago) that looks ok indoors due to the really good color/almost colorless, but take it to sunlight and at the jeweler's bright spot lights and looks like a dead fish eye, especially when it compares to other diamonds, even tiny ones. Too many inclusions, and right in the middle of it.
Personally I'd choose one that its brilliance is higher in all light circumstances. You can judge this only by seeing it in person, not by reading numbers.
 
#7
Not missing, still here. Just got really busy with work.

Thx for all your comments. One more interesting point i encounter recently, the thickness of a griddle. If the cut is to be the same would you prefer a medium or medium to slightly thick griddle?
 
#9
Jasonsun, tell us how the diamonds look IRL. Does the HCA does it any justice, B is suppose to be more brilliant than A, does the human eye see this in this instance? Let us know.
 
#13
Don't forget to take it out under the sun, if the sales person lets you. The diamonds tend to give away their true features under natural light - espcially when you are chosing between two 'similar' stones. Tiffany's lighting is deceptive - but hey, those diamonds sure look shiny and white in the store.

Good luck!
 
#15
Here's a little "cheat sheet" for you for angles:

depth - 60 - 62% - I prefer 61.0 to 61.9
table - 54- 57%--I prefer around 55%
crown angle - 34- 35 degrees
pavilion angle - 40.6- 41 degrees
girdle - thin to medium is my ideal, thin to sl thick I can deal with
polish and symmetry - prefer excellent symmetry, but polish as very good is acceptable to me

With crown and pavilion angles at the shallower ends ( CA 34- PA 40.6) and steeper ( CA 35- PA 41).

But the biggest piece of info: USE YOUR EYES. It has to appeal to you. It could sound fabulous on paper, and then look like a dog.
 
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