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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.
Through its library and subject experts, GIA acts as a resource of gem and jewelry information for the trade, the public and media outlets. [2] In 1953 the GIA developed its International Diamond Grading System and the "four Cs" (cut, clarity, color, and carat weight) as a standard to compare and evaluate the quality of diamonds. [2]
Diamond certified FL (flawless) by the GIA Two diamonds of grade VS 1 and SI 2 respectively. The GIA diamond grading scale is divided into six categories and eleven grades. [2] The clarity categories and grades are: [3] Flawless category (FL) diamonds have no inclusions or blemishes visible under 10× magnification. [3]
WASHINGTON (Reuters) -U.S. President-elect Donald Trump on Thursday picked three members of his criminal defense team, including lead attorney Todd Blanche, to serve in senior roles at the Justice ...
Several bottlenose dolphins in the Gulf of Mexico were found to have traces of fentanyl in their system, shocking scientists and bringing in a new set of questions in the ongoing drug epidemic.
Richard Ramirez, the serial killer who was sentenced to death following his heinous crimes in California, died while on death row in 2013. He was 53.
The GIA began grading cut on every grading report for round brilliant beginning in 2006 [31] based on their comprehensive study of 20,000 proportions with 70,000 observations of 2,000 diamonds. [citation needed] The single descriptive words are as follows: Excellent, Very Good, Good, Fair, and Poor. [30]
BRUSSELS (Reuters) -NATO head Mark Rutte warned the U.S.-led transatlantic alliance on Thursday that it was not ready for the threats it would face from Russia in the coming years and called for a ...