How We Select Our Diamonds

How We Select Our Diamonds
Now i will guide you through how iDo Jewellery selects our diamonds using a few guides. We do not just select our diamonds based on just GIA certificate, we go beyond that.


The bottom link is a quick understanding between 2 exact same specification diamonds. However there are huge difference if there is slight difference in proportion (cutting).


The crafting of IDO SUPERIOR diamonds is aimed at the very heart of GIA 0 parameters representing a very narrow subset of the overall GIA Excellent cut grade category. Majority of the cutters sacrifices the light performances of a diamond to yield heavier carat. For our diamonds, which you can select any diamonds with ease as we have filtered before we post them on the website.

For our IDO SUPERIOR diamonds, it will normally fall within a specific range of measurement. In rare cases, it is possible for an IDO SUPERIOR to exceed one or more of these specifications, but only if the light performance analytics are superb which is unlikely.

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Crown Angle

Pavilion Angle



Polish Grade

Symmetry Grade


57 – 63

52 – 62

31.5 – 36.5

40.6 – 41.8

N – P – S – M

T – M – ST




59 – 62.5

55- 58

34 – 36

40.6 – 40.8


T – M – ST




There are a significant practical benefits of selecting IDO SUPERIOR DIAMOND; It insures the diamond will be a top performer in all possible lighting conditions. No matter how many articles you have read, you will still have doubt when you are given a whole lot of diamonds to select. The benefit of owning an IDO SUPERIOR diamond is experienced every moment of every day with every glance of every eye & purchase with ease because we have filtered them for you!


iDo Jewellery will provide a set of images & video of an actual diamond that enable a complete understanding of each and every diamond we select handles light. We provide a magnified face up image of the diamond that can reveal certain aspects of clarity and patterning, and another 360 video that reveals to some extent its dynamic potential to deliver fire and brilliance.

In addition, we provide actual ASET and Idealscope images that reveal critical aspects of light return and light leakage. Any significant amount of light leakage detected by these tests will be grounds for disqualification. This fact also explains why these images tend to look very similar throughout the IDO SUPERIOR category.


It could be argued that any internal inclusions block some light rays as they pass through the diamond and would therefore diminish light performance. In theory this is true but in practice many inclusions are so minute as to have negligible effect on performance. This is especially true in the upper gemological grades. In the Slightly Included grades, diminished light performance can be an issue, even if cutting is perfect. Therefore, one of the critical assessments the iDo Jewellery gemological review team makes is to look for any deleterious effects that might be present as a result of clarity features. Depending on several factors such as inclusion type, location, size and density, some diamonds will appear slightly “sleepy” or not as “crisp” as they other. This can be a very subtle effect and one that is not contained on any grading report.

For perhaps even more obvious reasons, IDO SUPERIOR diamonds are carefully inspected for any clarity issues that would give rise to structural weakness. A diamond with a feather or other clarity feature that in our assessment poses an elevated durability risk for mounting or wear will not be allowed in the brand.
Indented natural, chip are “flaws” which dips below the polished diamond’s surface. An indented natural is a part of the rough diamond that was left untouched during the polishing process and is usually found at the girdle.

Defects that can be controlled by the cutting process are not allowed. For instance, diamonds with chips or scratches mentioned on the lab report will disqualify a diamond from IDO SUPERIOR. Extra facets are not allowed in IDO SUPERIOR rounds as they often represent a “shortcut” that a cutter has taken to repair a chip or remove an inclusion. Diamonds with any such deficits are not allowed.


A large percentage of mined diamonds exhibit a property called fluorescence. When exposed to ultraviolet light, they will glow. Usually the color is blue. Because fluorescence can reduce market value, and in some cases actually diminish light performance, IDO SUPERIOR diamonds must have None fluorescence.