Tips for buying diamonds easily, pro edition
with the principles of 4Cs
Diamond is a gem that people have been popular for a long time from the past to the present. Due to its beauty and rarity, there is also a unique feature that is different from gemstones. The "hardness scale" of diamond is the hardest on a scale of 10 on the Mohs scale and has a beautiful sparkle. Make it popular to make jewelry. Trading in diamonds depends on the popularity and satisfaction of buyers. By choosing to buy diamonds, the 4Cs principle is used in valuation. It includes Carat, Color, Clarity and Cut.
C-Carat Carat
Carat is the unit of measurement for the weight of a diamond. The weight of the diamond affects the price. The heavier the diamond, the higher the price. A diamond weight of 1 carat is equal to 0.2 grams, which most Thais prefer to call the weight of a diamond as a unit of "Tang", for example, a 0.50 carat diamond is called 50 money or a 1 carat diamond is called 100 money.
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C-Color The color of the diamond
Color is also classified as another important factor in purchasing as well. Most Thai people refer to it as "water". The best water is clear and colorless. It is called a water diamond 100 or D Color, and it is gradient down to water 99, 98 and 97 or E, F, and G respectively, etc.
C-Clarity Diamond Clarity
It is well known that diamonds or gems have natural internal defects. In which diamond inclusions are classified according to the size of the defects that can be seen with the naked eye or using a 10x magnification camera.
VVS (very very slightly included) minor internal defects Flaws can be seen when viewed with a magnifying glass.
VS (very slightly included) Internal defect, visible to the naked eye and noticeable on magnifying glass.
SI1-3 (slightly included 1-3) The internal defects are clearly visible to the naked eye.
I1-2 (imperfect 1-2) A large internal defect is clearly visible. Flaws have a moderate impact on aesthetics.
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C-Cut cutting
Cutting is important when choosing a diamond. In addition to affecting the weight Cutting also affects the beauty and sparkle of a diamond. A good cut must have symmetrical proportions. The bottom of the diamond is not too shallow or too deep because it can affect the sparkle of the diamond. Most diamond cuts are standard cut, there are 57-58 facets in total. How to assess the degree of cut diamond face up for brightness and sparkle. It will give an excellent level, which is the best cut level according to GIA's Diamond Grading System. Also, the cut that has the best proportion will be seen as Heart & Arrow. There are mostly reflections and sparks. Better than normal diamonds But this cut will depend on the skill and skill of the cutter.
diamond price
The vast majority of diamonds are traded at the mid-market price, known as Rapaport, which is used as the benchmark for global trading prices. It will be weight, color, cleanliness, which determine the price in the table. If the diamond is graded with high quality The price will be high according to that quality as well.
Rapaport price can be calculated from the formula
For example, a round diamond, water D Color, clarity is VS1, weight is 0.4 ct. Price per carat is 30 in US dollars, calculated as
_cc781905-5ccde-1905cde-3194-bb3b-136-bad5cf58d_ _cc781905-5ccde-3194-bb3b-136-bad5cf58d_ _cc781905-5ccde-3194-bb3b-136-bad5cf58d_ _cc781905-5ccde-3194-bb3b-136-bad5cf58d_ -bb3b-136bad5cf58d_ fb378b-d5cf58d_bb-94581905_fb-94581905-5cde-3194-bb3b-136bad5cf58d_fb3 789458d_bb3789458d_bb-94581905-5cde-3194-bb3b-136bad5cf58d_fb-9458d -5cde-3194-bb3b-136bad5cf58d_ _cc781905-5cde-3194-bb3xx100 carat weight exchange rate
_cc781905-5ccde-1905cde-3194-bb3b-136-bad5cf58d_ _cc781905-5ccde-3194-bb3b-136-bad5cf58d_ _cc781905-5ccde-3194-bb3b-136-bad5cf58d_ _cc781905-5ccde-3194-bb3b-136-bad5cf58d_ -bb3b-136bad5cf58d_ fb378b-d5cf58d_bb-94581905_fb-94581905-5cde-3194-bb3b-136bad5cf58d_fb3 789458d_bb3789458d_bb-94581905-5cde-3194-bb3b-136bad5cf58d_fb-9458d -5cde-3194-bb3b-136bad5cf58d_ will be 30 x 100 x 36.86 x 0.4 = 44,232 baht
The price according to the Rapaport is only the standard price. Some stores may increase or decrease the price depending on the condition and other factors.