12th of September 2014
PRICE OF A DIAMOND – DO NOT BE FOOLED !
TO AVOID ANY DESILLUSION, BEFORE TO BUY A DIAMOND JEWEL OR A LOOSE DIAMOND, YOU HAVE TO BE AWARE OF THE 8 QUALITY CRITERIA ON WHICH THE DIAMOND PRICE IS BASED
1 – SHAPE : The Round shape diamond or “brilliant” is by far the most popular and the most sold for diamond jewelry but also for a loose diamond as an investment. “Fantasy” cuts are less expensive than round ones, pear shape , marquise, heart, cushion, oval, emerald cut, princess cut, etc…
2 – WEIGHT : The weight of a diamond is expressed in carats. One carat weighs 20 grams and is divided into 100 points. For example, 25 points is 0, 25 carat. Above one carat we no longer talk about points.
3 – COLOUR : Most diamonds are white, transparent or translucent. Grading is as follows: D: Exceptional White +, E: Exceptional White, F: Extra White +, G: Extra White, H: White, I – J : Nuanced White, K – L: Slightly tinted, M to Z: Tinted. The Antwerp Private Diamond Club sells only diamonds with top colors: D, E, F, G, H.
4 – CLARITY : The clarity of a diamond depends on the location, quantity, size, shape and color of inclusions found there. Grading is as follows : FL: Perfectly pure – IF = LC i.e total lack of inclusion – VVS1 and VVS2: Very Very Slight inclusions, VS1 and VS2: Very slightly inclusions – SI1 and SI2, Slight inclusions not visible to the naked eye – P1, P2 and P3: Large and / or numerous inclusion (s) visible (s) to the naked eye. They are called ”Diamonds piqués”. The Antwerp Private Diamond Club sells only diamonds of higher categories, FL to SI.
5 – THE PROPORTIONS: The Antwerp Private Diamond Club sells only diamonds whose proportions are excellent or very good. If the proportions are average or bad, the diamond value is 10% to 15 % less.
6 – THE SYMMETRY: The Antwerp Private Diamond Club sells only diamonds whose symmetry is excellent or very good. If the symmetry is average or poor, the diamond value is 10% to 15 % less.
7 – THE FINISH (crude trace on one or more facets): The Antwerp Private Diamond Club sells only diamonds whose finish is excellent or very good. If the finish is average or bad, the diamond value is 10% to 15 % less.
8 – THE DEGREE OF FLUORESCENCE: The rarest diamonds are those which are not fluorescent. The Antwerp Private Diamond Club sells only diamonds which have little or no fluorescence. If the fluorescence is medium or high, the diamond value is 15 % less.
Before buying a loose diamond or a dimond jewel ask to see a copy of the Certificate of Authenticity (HRD – GIA or IGI ). You should read these eight criteria . If, for example , a diamond of 1.20 carat E VVSI has Proportions , a Symmetry, a Finish that are good, average or bad and strong Fluorescence , this diamond can be worth up to 60 % less than a diamond of 1.20 carat E VVS1 which all criteria are Excellent or Very Good and with No Fluorescence.
Do not be fooled about the price of a diamond because its price is largely determined by the gradation of each quality criterion.
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