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While both reports contain a number of measurements, including dimensions, proportions, carat weight, color, and clarity, the Diamond Grading Report also includes a diamond plot (a graphic representation of the position and type of inclusions present in the diamond). Diamond reports from GIA (as well as other, for-profit sources) are now ...
Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat , color , and cut .
In 1953, Liddicoat introduced the GIA diamond grading system - a practical approach to grading the quality of colorless to light yellow polished diamonds on the basis of color, clarity, and cut. A central feature was the D-to-Z color grading system for faceted colorless to light yellow diamonds—the vast majority of diamonds seen in the trade.
IGI provides independent grading reports, colored stone reports, identification and appraisal reports, diamond authentication and attestations of origin, and laser inscription services. They also offers diamond and colored stone courses through IGI's Schools of Gemology. [7] Graduates from the IGI school of Gemology are awarded an IGI Diploma.
There are two major non-profit gemological associations which grade and provide reports, (informally referred to by the term certificate or cert, which is a misnomer for many grading reports) on diamonds; while carat weight and cut angles are mathematically defined, the clarity and color are judged by the trained human eye and are therefore ...
A flight attendant has reportedly been injured after falling from a plane at an airport in England. On Monday, Dec. 16, at approximately 4:30 p.m. local time, the woman — who works for the ...
There are hundreds of women’s slippers to choose from today, with options in every style, color, and fabric you can imagine. To help you find the best slippers to wear around the house — and ...
Kris Jenner is getting in the Christmas spirit with some sexy snaps.. On Dec. 24, the famous momager, 69, shared a series of throwback pictures revealing her chic holiday style throughout the ...