Jewelry wisdom Literacy - Diamond treatise (repr

Jewelry wisdom Literacy - Diamond treatises
constantly have friends ask to diamonds in the hope that reading this can assist, but also help me to share portion of the exertion
diamond quality standard divided by 4C - 4C instantly determines the amount of diamonds.
1C, weight (carat, Carat, nail the identity of Ct), Needless to say, of course, the heavier the better, more expensive.
unit conversion: 1 kt = 1ct = 100 points = 0.2 grams
the following quote to VS, H as a reference:
1ct = 100 points, the market price of about 8-10 million, one karat diamond is yet a large range of diameter 6.5mm.
0.30ct = 30 points, 3 is not too small, the market price of the ring 30 minutes 1-2 million.
0.50ct = 50 points, the mall price of various brands 2-4 million range.
diamond carat heaviness of a bonus, that is to buy a 1 carat diamond, the same level than to buy two 50-point diamond price a lot extra priceless.
Buying advice: choose the right according to their allowance the size of the diamond.

2C, color (Color), the international standard for color white, transparency, as fathomed from D to the starting (D-level color is white level), a subsequent order, the more the more the diamond behind yellow, the present domestic market to the N-color, N color later on rare needs.
D-F: very white to the ########## eye can not see the difference.
G-H: white.
I-J: yellow.
; ; ; GIA color than the stone, colored class limit
;

H
highlight color, H color is the industry that the white diamonds (diamond quality) of the line, routinely more than the elementary colors that H can not see yellow intonation.
domestic sales of shopping hearts is mostly between FJ-color diamond, D,GHD IV Mini Straighteners, E such rare high-color diamond, K afterward the rare yellow diamonds for sale.
Buying advice: F-J between attractive.
-
3C, Clarity (Clarity),GHD Pink Limited Edition, usually used in worldwide IF, VVS, VS,GHD Black Butterfly 2011, SI, P are interpreted as: -
(1) IF the perfect flawless, domestic as LC, that is ten times under a magnifying glass can not see the flaws - you remember: it is impossible to give diamonds to this level.
;
; - remember: the domestic diamond grading is not feasible to give to this level .

(2) VVS subdivided into VVS1, VVS2. V = Very, VVS - very, quite (quite very) small inclusions
;
; - professional diamond grading division 10 times in under a magnifying glass is also very laborious to detect the probe point-like inclusions. -

(3) VS subdivided into VS1,GHD Classic Styler Straighteners, VS2,
VS level of inclusion than VVS big, 10 times the microscope more difficult to find professional diamond grading division, VS2 VS1 grade more than inclusions.
;
; ; VS quality diamonds level is the dividing line.

(4) SI subdivided into SI1, SI2, are small failings, lightly seen under a magnifying glass every once in a while flawed SI1, separate the number of multi-point to SI2;
;
- SI level the ########## eye can not see inclusions. Therefore, while buying diamonds SI level above the ########## eye can not differentiate the difference come.

(5) P level is subdivided into P1, P2, P3, were retarded for the nude eye can see, the ########## eye can see the flaws as P1, visually easy to see that for the P2, it is easy to see eye to P3.
;
- where there are currently shopping in the rare P-class diamond grading diamond sales, whether the larger diamonds (30 points) and the identification of the certificate does no denote the level of lucidity, mostly lower-level perspicuity, businesses terror shock of bargains does not indicate the reason.

Buy recommendations: From the cost point of outlook, I highly recommend SI - VS grade diamonds.
If
like to gather the hope that as a hedge opposition inflation and the fiscal strength of friends, the proposed purchase of VVS-IF diamond level.
-
4, cut (Cut) - diamond cutting and grinding process that is good or bad evaluation, maximum of the main three:
(1) cutting and grinding ratio:
contains wide-ratio, pavilion depth, etc., is easy to see the headaches too complex, briefly truth:
table is too large, diamond color becomes fewer than the fire, the table is too small, diamond see not sunny ample
diamond table is to show the brightness of the chief (principle of total reflection of light).
star afterward to the main facets of launch diamond color display. So the table is too huge alternatively too small is not good, moderate to good.
generally large table of the diamond will emerge bigger.
Pavilion depth - determines the light via the diamond, is not to fulfill total reflection, lustrous diamonds show prettiness.
; Pavilion depth is too superficial - Fisheye Diamond
; Pavilion deep is too deep - the proportion of dark diamond ----------- are not cut, diamond leaky result.
(2) symmetry revision degree: the assorted facets of the same diamond facets should be so large, symmetrical;
; table should be centered, level and not tilt, which are well understood.
(3) Finish: lustered diamond's quality and brightness of some of the impact of slick diamonds 10 periods a wrong polishing lines apparent below a magnifying glass.
; ; ; cut diamond extravaganza as well:
;
cut level division: EX = Excellent, English: perfect definition.
; VG = Very Good; this does not unravel, do not know ,GHD Hair Straighteners NZ, and I asked Baidu to work.
; G = Good; ibid.
; FR = Fair; general, in truth, mean difference .
; Poor: poor.
VG proposed purchase of more than three indicators in the diamond.
3EX a lot more expensive diamonds, personally feel no need to go to mediocre buyers demanding 3EX stone, of course, besides deep pockets.

Hearts and Arrows:
Hearts and Arrows Diamond
optical nature:
uncomplicated point namely that the refraction of light reflected to form a special optical phenomena, for shown beneath,New GHD Professional Pink Straighteners, that's too deep to look the dizzy:
;
phenomenon with perfect Hearts and Arrows diamonds have the following five features:
1, excellent brightness.
2, excellent color of fire.
3, excellent optical symmetry.
4, magnificent optical diameter.
5, perfectly remove star graphics
; perfect Hearts and Arrows:
;

;
; not perfect Hearts and Arrows contrast:
;

; the formation of a perfect Hearts and Arrows cut diamond proportion, symmetry necessitated a high degree, it is effortless to cut with the international appraisal system in the range of parameters conflict, so often a lot less than a Hearts and Arrows diamond 3EX perfect cut standards, but this does not affect our esteemed and loved him.
short words, do not absence to have a demanding both 3EX perfect Hearts and Arrows, you will and made himself very painful!

Another mutual problem: the diamond fluorescence
- a natural fluorescent properties of the diamond, the diamond is published under the incited by UV light, it is common for the blue and white, light yellow. Most diamonds are fluorescent, the body without radiation ashore person health neither whichever other negative effects.
In general, there is not fluorescent fluorescent diamonds diamonds than cheaper, yet not a lot of distinction, the fluorescence will be slightly lower than the hardness of diamonds without fluorescence Diamond, almost impossible to see the difference in advent. However, the fluorescence would purchase a cheaper, nice price.

- on observations recommend a purely personal attitude, only because reference