DIAMOND CLARITY
The clarity of a diamond refers to inclusions which can be black, grey or white marks that internally flaw the diamonds structure. These small imperfections are graded under 10 x magnification which is the standard to grade diamond clarity. A diamond with fewer inclusions is both rarer and more desired which makes it also more expensive. Diamond clarity from IF to VS2 will sparkle with intensity whereas diamonds from SI1 to SI2 will sparkle and I1 to I3 will lack sparkle and life with the inclusions being noticeable to the naked eye. All conditions being constant, the less inclusions the greater the life and sparkle of a diamond and the more one will pay.

Clarity is synonymous with purity, lucidity and calm. The dictionary
quite appropriately mentions ‘spotlessness’ which can be quite literally
applied to diamond clarity. A diamonds clarity grade is determined under a 10 times magnification
by trained gemologists. Although very strict guidelines are in place it is
open to judgment and a prudent approach is always highly regarded. This
prudent approach is why choosing a diamond with a reputable certification
report is very important.
TYPICAL IMPERFECTIONS CIRCLED IN RED |
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![]() IF = Internally Flawless (IF) |
An internally flawless IF diamond is very
special because there are no internal inclusions, nature has made it
perfect. A very small percentage of diamonds are this perfect and when
given as a symbol of love this characteristic is highly regarded. The
emotional link between a diamond and a couples union makes the flawless
diamond the most revered and sought after. Because of this emotional and
symbolic attachment, diamond clarity has the greatest influence on price
after carat weight or size. Can there be a more powerful gesture than to propose and declare your love with a D Flawless diamond? |
![]() VVS = Very Very slightly inclusion (VVS1 and VVS2) |
A diamond with very very slight inclusions, VVS1, has an amount of
non crystallized carbon often situated around the girdle or edge of the
diamond. A very very slight inclusion, VVS2, will have inclusions of the
same size but closer to the table or center of the diamond. Both VVS
grades represent high quality and a near perfect clarity. Diamonds with IF
or VVS characteristics are considered investment quality and the purist
will insist on this clarity. Having few inclusions will improve the
performance of light return and sparkle so these diamonds are sought after
for their beauty. The price is proportional to the amount of inclusions in
every diamond and IF, VVS diamonds have a significant premium because of
the scarcity. |
![]() VS = Very Slightly included (VS1 and VS2) |
VS quality diamonds represent good value and retain a high clarity rating. A VS1 diamond will contain inclusions around the girdle or edge and the VS2 will have a similar amount of inclusions around the table and more central areas of the diamond. VS quality diamonds are ‘eye-clean’, which suggests that no visible marks can be seen with the naked eye, and we recommend this classification for quality minded purchasers. |
![]() SI = Slightly imperfect small inclusions (Si1, Si2 and Si3) |
Slight inclusion, Si1 quality diamonds are graded as Si1, Si2 and
a not so common Si3. A Si1 quality diamond is considered to be eye-clean
although unaided but very close viewing or a trained eye could identify
the inclusions. The fact that such concentrated unaided analysis is not
normally performed by brides to be or their friends at dinner parties make
these diamond popular as they are priced significantly below the VS
quality diamonds. Having an ‘eye-clean’ diamond is the preference in
nearly all diamond buyers and we would stress that Si1 diamonds are
considered eye-clean because the location of the inclusion is difficult to
detect and usually around the edge. However we always add our own particular caveat. 'Stones commonly referred to as eye-clean have no visible marks when viewed with the naked-eye UNLESS you are female.' |
Slight inclusion, Si2 quality diamonds have slight inclusions they
are often located around the table and include black carbon which
contrasts to a diamonds whiteness and is more noticeable. We would advise
customers against Si2 clarity diamonds as they usually have at least 1
noticeable inclusion and so we consider them unfit to recommend. For the
budget shopper who is interested in carat size a Si2 diamond could be
appropriate but we would recommend having the diamond professionally
reviewed prior to an unsighted purchase and we are happy to perform this
service. |
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Slight Inclusion, Si3 clarity diamonds are a new scale that the
European Gemological Laboratory EGL introduced as there was perceived to
be a significant difference between an SI2 and a I1. The SI3 has not been
endorsed by other grading laboratories at this time and only time will tell if it is ever
accepted into main stream grading. |
|
![]() Inclusions visible to the naked eye (I1, I2, I3 - or sometimes refered to as P1,P2,P3) |
Are all
very poor clarity diamonds with an I1 being visibly included. ‘I’ clarity
diamonds loose light return because the inclusions are so large the light
that enters the diamond can be refracted at random angles. The many
inclusions also weaken the diamonds durability and a jeweller can more
easily chip the stone when setting it into a ring. These diamonds I1, I2,
and I3 are suitable for when size matters and a low budget requires very
poor clarity. |
SUMMARY
In summary an Internally Flawless IF quality diamond is the very best
and is perfect although expensive. The IF is the ultimate symbol of what a
diamond stands for and is admired because it is simply ‘flawless’ with
only minor blemishes on the surface which are man-made, hence internally
flawless. Very Very Slight VVS are the next best clarity grade and
represent investment grade diamonds at a premium price. Very Slight VS
diamonds represent excellent value and balance to a diamond and are highly
recommended. Slight Inclusion Si quality are considered ‘eye-clean’ to
SI1 and SI2, SI3 you will start to notice inclusions but you may have to
look quite hard. I1, I2, I3 [or sometimes refered to as P1,P2,P3] are heavily included diamonds with poor
quality and many black carbon markings. Although these spots are natures
finger-prints they are undesirable and priced to sell.







