wholesale jewelry stores in houston texas What are the levels of 9 yellow diamonds?

wholesale jewelry from thailand The diamond grade is to see the international standard 4C, which are color, clarity, cutting and quality (carat size)

wholesale jewelry enamel 1. Colorless-yellow-brown-brown is a common diamond color series. The common standards are commonly D-E -........... Sexual term modification to distinguish between color and grades of color and grades. Most of the yellow diamonds are commonly opened series of term. Only a few can be included in color diamonds.
NFL is flawless and flawless inside, and the surface is slightly defective VVS1. VVS2 contains extremely small internal contents (slight flaws that cannot be seen by the naked eye) vs1. vs2. Si2. Small internal content (unable to see the naked eye) i1. I2. I3. -D, E, and F are within the colorless range; G, H, I, J belong to the near -color range; K, L, M are slightly pale yellow; below n is light yellow.
The diamond grade -Diamonds are called "the king of gems" in the world with their highest hardness, crystal clear texture and glorious characteristics. It is a symbol of success, elegance, loyalty, eternal and innocence, so it is loved by people. Diamonds are the largest gem in the world's jewelry trade. Since the advent of light inspection instruments such as the heat guide instrument, diamonds have been identified as the advent of the hot test instrument. The authenticity has become a very simple thing, but how to evaluate the pros and cons of a diamond has become the main problem in diamond trade. The latest national standard GB/T16554-1996 "Diamond Grade" stipulates that there are four factors that evaluate the level of diamond level, namely the color of the diamond, CLARITY, Cut), and Cera Weight (CUT) Carat). These four factors are also called "4C" standards. "4C" is the first letter C in the four English terms of color, clarity, cutting, and carat weight. Consumers judge the measurement standard for a diamond value. There are all kinds of diamonds in the jewelry market, there are pure natural diamonds, and diamonds processed by irradiation and filling; there are white diamonds (actually colorless, white background lining) There are also colorful diamonds such as red, green, blue, orange, etc.; from the shape, there are standard round diamond -shaped diamonds, as well as diamonds such as heart -shaped, oval, pear -shaped. The most common diamonds in the market are white (colorless) standard round diamonds. Therefore, in the "4C" standard, the color, clarity, and carat weight of diamonds only refer to natural white (colorless) to light yellow to light yellow to light yellow to light yellow (Brown, gray) series, the polishing diamonds with a weight of carats weigh more than 0.2 are classified, and the cutting grades are only for standard round -cut diamonds or inlaid with white (colorless) to light yellow (brown, gray) series, 1 carat ~ 0.1 Clarge's diamond quality classification. The "4C" standard is not applicable to the grades of color diamonds and radiation and filling diamonds. In the "4C" standard, the color of the diamond is divided into 12 levels. The method of grading is: set the pure colorless diamond to the highest color pole -extremely white and 100 colors, which is represented by D, and it can also be written as D (100). As the yellow ingredients of diamonds continue to increase, the color level gradually decreases. For E (99), F (98), G (97), H (96), I (95), F (94), K (93), L (92), M (91), N (90) And small n (90).
In the diamond appraisal certificate, the color level is usually only represented by English letters. When the color level is lower than N, it is generally believed that the diamond is not suitable for jewelry. The color grading of diamonds is determined by repeated comparisons of the hierarchical diamonds with the standard ratio of the standard in the prescribed and standardized hierarchical environment. Or use the chroma, scan the graded diamond within the visible light range, and then determine through a series of technical analysis and treatment; The less impurities, defects, or defects inside it, the opposite is the opposite. Objectively speaking, the flawless diamonds are rare. Standard stipulates that 10 times the large mirror is used to treat the internal and surface flaws of the graded diamond during the clarity classification. Class: Flawless LC, Very Micro Flawar Vvs, Micro Flaw Class VS, Defacted Si and heavy flaws P. In 5 large -level, it is subdivided into 10 small levels, namely LC, VVS1, VVS2, VS1, VS2, SI1, SI2, P1, P2 and P3; This is an indicator that is directly affected by human factors in the 4C standard.
The brilliant glory of diamond is attributed to its unique high refractive index and high -color scattered performance (commonly known as "fire color". Only the excellent and compliant ratio can be reflected. Diamond -unique luster, glory and flash. If they are rough and not in line, they will produce a "light leak" phenomenon. Even if the diamond has good color and clarity, it will not be possible to have good light. The value is still low. The simple way to determine the advantages and disadvantages of consumers is: pick up the diamond and stare at the light that shines on its top surface. If there are not many colors, the cut is not ideal. The general three levels; the quality of the diamond (commonly known as weight) unit is gram, but the international diamond trade still uses "carat" as the quality (weight) unit of diamonds, 1 carat = 200 mg = 0.2 grams. 1 carat is divided into one. One hundred copies, each name is 1 point, such as 0.8 carats are called 80 points. Under the condition of similar color, clarity, and cutting conditions, as the diamond weight increases, its value increases geometrically. Consumers should purchase diamonds of suitable size according to their hobbies and actual situation. The Belgian Diamond Senior Parliament is the official recognition of the Belgian diamond business industry. Its headquarters is located in the World Diamond Center Anderspup. Detailed features of diamond value, such as color description, color design, and glowing.
This Diamond Certificate Number (REPORT: Rating of the diamond: Report: Report: Report Certificate Number Date (DATE): The diamond shape and cut style (Shape and CUT): mainly describes the shape and cutting of diamonds of the diamond (): The diamond size of the diamond size of millimeter (Weight ): Describes the deeper weight of the carat with a nearly one percent of the diamond (): Compared to the diamond (round diamond or fancy diamond) height ratio (Table Width): Relative to diamonds (relative to diameter ( Crown Height (CROWN Height) on the countertop: Compared to the diamond (round diamond or fancy diamond) crown, Pavilion depth: relative to diamond Diamond or fancy diamonds) The proportional symmetry of the pavilion: Symmetry: Girdle Thickness of Diamonds: Culet with the thickness of the diamond back: Polish polishing (Polish) : Clarity Grade of Diamond Polish: Classification Grade Classification Structure of Diamond Classification Grades of Diamonds in 10 times: A display diagram observed under the magnifying glass, it describes the shape of the diamond and the inner contents of the inner objects COLOR GRADE: color grading of diamond
fluorescence (): Under ultraviolet light, visible light
s): The description of other characteristics of the diamonds not mentioned in the report. The above is a simple division of diamond level