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Ice Ideal Cut Diamonds


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Ideal Cut

 

Contact an experienced IceStore diamond professional for personal service and attentive help in finding your ideal diamond. 

Tel:11 334 8555

Ice- Ideal Cut Diamonds 

We all want a good price, but we also need good value

To have good value, you need good quality at a good price

And that's precisely what "ICE Brand" diamonds are all about

"Ice brand" diamonds are carefully cut for brilliance, while maintaining a highly competitive price/value relationship.

Ice brand" diamonds are precision cut then certified by DCLA,HRD, GIA or AGS, Ice Ideal & Excellent cut diamonds are cut within a range of dimensions and tolerances that produce exceptional brilliance.

Note: Certification by the independent laboratories is not a guarantee of quality it is a guarantee of accurate assessment.

There is no single universally accepted grading standard for cut and proportion, mainly because there exists a range of possible dimensions that produce high quality diamonds. The major international grading laboratories grade as deviations from one of 4 standards, The choice of standard is usually of a nationalistic or historic nature.

In simple terms, if a combination of dimensional proportion prevents the leakage of light, then the diamond will display increased "brilliance"

The first two illustrations below illustrate the leakage of light of diamonds not cut within "Ice Brand" specifications.

The third illustration is typical of diamonds cut to "Ice Brand" specifications  

Copyright© www.yourgemologist.com used with permission

 

The brilliance of "Ice Brand " diamonds can clearly be seen with the naked eye and do not require special instruments or scopes to prove they are in fact " brilliant " However the use of optical scopes like The Firescope, Ideal Scope and H&A Scope can all be used to eliminate poorly cut diamonds

Diamonds that qualify as " Ice Brand" are not bound by any one laboratory opinion, they are selected across the dimensional spectrum of the four most popular traditional standards.

 

Proportions

Tolkowsky Brilliant

Practical fine cut Eppler

Scandinavian. Standard Brilliant

Eulitz Brilliant

Crown height

Girdle diameter.

Pavilion depth

Table diameter

In % of r diameter

16.2%

___

43.1%

53.0%

14.4%

___

43.2%

56%

14.6%

___

43.1%

57.5%

14.45%

1.5%

43.15%

56.50%

Crown main facets

Pavilion main facets

angle to plane of girdle

     34.5°

 

40.75°

33.2°

 

40.8°

34.5°

 

40.75°

33.36°

 

40.48°

Ratio of crown height: pavilion depth

1: 2.66

1:3.00

1: 2.95

1:300

Light yield

Brilliance grade

32.39%

99.50%

33.03%

99.95%

___

99.50%

____

100%

 

From this table it may be seen that the proportions of the American Tolkowsky Cut, the Scandinavian Standard Brilliant and the German Practical Fine Cut lie within a narrow range of tolerances and are comparable throughout. 

 

The table above was produced by the world renowned gemologist Verena Pagel Theisen and appears in her book " Diamond Grading ABC".  Based on the comparisons of the above table, the images below represents the most practical methodology of evaluating cut and forms the basis of the selection criteria used to select "Ice Brand" diamonds

 

"Ice Ideal & Excellent " diamonds are selected from within the range of tolerances indicated  and then subjected strict visual inspection".

Although selection will always be within these ranges, special care is taken to ensure that the crown and pavilion angle combinations are compatible.

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Johannesburg, South Afric
a

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Sydney NSW 2000

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