Choose a diamond

You must be vigilant buying diamonds on the internet.  A shiny diamond of the same weight, but different degree of purity can make a big considerable in price.  In addition, the price of a diamond of colour D and the purity VVS1 will be less than 28% in relation to a diamond of colour D and IF Purity.


colours of diamonds

colour of a diamondSpectrum of colour variations in diamonds

The most sought after diamonds  are those that have no couleur (D).

You must be vigilant buying diamonds on the internet.  A shiny diamond of the same weight, but different degree of purity can make a big considerable in price.  In addition, the price of a diamond of colour D and the purity VVS1 will be less than 28% in relation to a diamond of colour D and IF Purity.


diamond clarity 

Inclusions and Irregularities are normally present in diamonds in the same way as imperfections on the surface.  A high degree of clarity does not mean that the diamond is less beautiful.  The high clarity of a diamond does not make the diamond prettier, but determines its value and how rare it is.  

The VS2 diamond clarity rating is recommended by customer care representatives of Maison Jaubalet to buy a diamond on the internet  
Clarity of diamond
Claritydefinition
FL FlawlessNo inclusion or stain of any sort visible to a qualified inspector under a 10X lens. 
IF Internally FlawlessNo Inclusion or stain of any sort, they are only visible to a qualified inspector under a 10X lens. 
VVS1 and VVS2 Very, vey slightly included The Inclusions or stains are barley visible to a qualified inspector under a 10X lens. 
VS1 et VS2 Very Slightly Included The Inclusions or stains are visible to a qualified inspector under a 10X lens
SI1 et SI2 Slightly Included The Inclusions or stains are visible to a qualified inspector under a 10X lens
I1, I2 et I3 IncludedThe Inclusions or stains are highly visible under a 10X lens and may affect the transparence or shininess of the diamond.   

the weight of diamonds

WeightDiameterthickness
0,30 carats4,20 mm2,60 mm
0,50 carats5,20 mm3,30 mm
1,00 carats6,50 mm4,10 mm
1,50 carats7,40 mm4,60 mm
2,00 carats8,20 mm5,00 mm

When buying a diamond on the internet, you must verify that the weight is marked on the certificate.

The weight of a diamond is measured in carats.  The word comes from “Caroub” which seeds where used to measure weight (1 carat = 0.2 Grams).  The larger the diamond, the rarer it is.  Even if the it is only 2 times bigger.  A stone that is 1.00 Carat is statistically bigger and more difficult to find than a stone of .50 carats.  This is in part because a 1 carat stone has a value of 4.2 times the price of a .50 carat stone of equal quality.  Therefore, it is worth double.      



The florescence of the diamond

To buy a diamond on the internet, you must verify that the diamond has only a slight reaction to ultra-violet light or florescent light knowing that if diamonds stay dark that they are not fluorescent.  When fluorescence of a diamond is strong, the general aspect of the stone may, under certain lights, change and depreciate in value.  


5 Diamonds under UV lamp will reveal to us the florescence from None: Left to Very Strong: Right 

fluorescent of diamond
fluorescencedéfinition
«none» ou «nil»Absence of Florescence 
«very slight»Very light presence of florescence 
«slight» ou «faint»Slight presence of florescence 
«medium»Medium presence of florescence 
«strong»Strong presence of florescence 
«very strong»Very strong presence of florescence 

When buying a diamond on the internet, the jewellery experts of Jaubalet will help you find a diamond with no florescence or slight florescence.   


the shine of a diamond 

definition
excellentexcellent
very goodVery Good
goodGood
fairFair 
poorPoor 

Buying a diamond on the internet, you must verify its shine.  The estimation of shine is the result of the observation of:

The absence of strong ribbing

The presence of stripes that if very big are very important and should be indicated in the remarks.  


the symetry 

Whilst buying a diamond on the internet, you must verify the symmetry. 

The estimation of the symmetry is the result of observing:

The way the sides meet

The symmetry of the sides

The presence of extra sides and how pronounced they are

The Placement of the band

The Placement of the table 


Whilst buying a diamond on the internet, we recommend that you do not settle for anything under “Very Good”. 

symmetry of a diamond

Examples of A-symmetry 


polidéfintion
excellentexcellent 
very goodVery Good
goodGood
fairFair 
poorPoor 

the Table of the diamond

Shiny Diamonds of which the table makes up between 52% and 62% are generally considered as having optimal beauty, especially for weight up to 0.50 carats. 

Whilst buying a diamond on the internet, we recommend that you do not go below 62% 

 

table of a diamond

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