The Super Ideal Cut Diamond

What are Super Ideal Cut Diamonds?

Here i'll teach you easily how to ensure your ideal diamond is a cut above the rest, more fire, more light return, more scintillation.

In the first place, what makes an Ideal diamond?

GIA: Excellent Cut, Excellent Symmetry, Excellent Polish
AGS: Ideal Cut, Ideal Symmetry, Ideal Polish

So what makes a super ideal diamond?

STEP 1: Finding the Super Cut

GIA:
55-57% Table
59-62% Depth
33-35 Crown angle
40.6-41 Pavillion Angle
Star Facet Minimum: 50%(refer to below)
Lower Girdle Facet minimum: 75%(refer to below)
http://www.pricescope.com/cutadviser.asp
HCA Score must fall below 1.5

Combinations of the Star/Lower for GIA:

50/80
50/75

55/75

55/80
AGS:(remember their clarity grade is not as strict as GIA, so do check through the loupe)
All rules above must apply.
A little extra work here, AGS triple 0 may come with painted girdles, an idealscope/aset is needed here.


Make sure your diamond looks like the one on the right!
Difference:


AVOID: Very thin/Very thick girdles, Medium/Large/Extremely Large Culets

What to see on the HCA?
Light Return: Must be Excellent
Fire: Must be Excellent
Scintillation: Excellent or Very Good(I prefer if it'd be Excellent)
Spread: Very good or Excellent(Dont worry too much about this)

Where do i find these values from, Dawn?



Look at the cert and you will find these values from here!

Okay, now we found the best looking, firey, sparkling diamond. What is next?

STEP 2: Finding the TRUE HEARTS
Because i found the best super ideal diamond, it still does not mean it has hearts and arrows! Don't let anyone tell you otherwise! Yes, 90% of the time it would, but there still might be a chance there won't be. Don't be fooled by fake hearts. Make sure you find a real good one, cause what you're paying for, is the perfect symmetry.

Make sure those hearts are real nice and solid. All the hearts need to look EQUAL in size as well, Take your time to look at them, i'm sure your jeweller won't mind!


These hearts are really bad, arrowheads are not uniform, some parts of the arrow heads are touching the hearts. Hearts are different in size, with some clefts on the hearts.

These arrows are close to true, but still not perfect, and will fail as a true heart and arrow.

STEP 3: Dawn, there are so many diamonds, how do i find a super ideal quick and fast?

Heres a check list of how to skim through and weed through diamonds as fast as possible. It's the fastest way to filter out what you are looking for in order of importance.

1. First, look for 55-57% tables + 59-62% Depths, if this is true, proceed to step 2!
2. Look at the pavillion angle, if it is 40.6-41 go to step 3!
3. Look at Crown Angle, If it is 33-35 proceed to step 4!
4. Look at the Star facet and lower girdle facet, min 50% and 75% respectively. if true, proceed step 5!
5. Calculate the HCA score! If less than 1.5 proceed step 6
6. Check Aset/Ideal/Hearts and arrow scope


There may be certain conditions whereby it is an exception. Table may vary to 53%, In that case it's quite a subjective case, and I can't give you numbers to help you because what i've posted above is a general guideline. However i'd be able to help you if you have the information of the diamond(cert etc) and you can email me at dawnandbrianmin@hotmail.com and i can advise you from there!