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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.
GIA was also responsible for the first modern diamond grading reports, where it introduced grading methodologies for diamond color and diamond clarity. Current research at gemological laboratories concerns the development of improved detection techniques for treated and synthetic diamonds , as well as for treated sapphires , rubies and pearls.
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]
The U.S. Commerce Department on Thursday finalized an award to SK Hynix of up to $458 million in government grants to help fund an advanced chip packaging plant and research and development ...
IBM sued the Malta, N.Y.-based company in New York state court in 2021 for allegedly breaking a $1.5 billion contract to make high-performance chips for IBM. GlobalFoundries, which is majority ...
Who was Wasp? Season 12 runner-up was unmasked and revealed to be R&B singer Mario Dewar Barrett, better known as Mario. The 38-year-old Baltimore native has released several studio albums ...
IGI provides its services to the public through diamond dealers, and jewelry manufactures. IGI provides independent grading reports, colored stone reports, identification and appraisal reports, diamond authentication and attestations of origin, and laser inscription services.
Listen and subscribe to Stocks in Translation on Apple Podcasts, Spotify, or wherever you find your favorite podcasts.. 2024 was a year of financial surprises for many investors. The S&P 500 index ...