4Cs of Diamond Quality: Diamond Clarity Grading by GIA скачать в хорошем качестве

4Cs of Diamond Quality: Diamond Clarity Grading by GIA

http://gia.edu/diamond 4Cs of Diamond Quality: Diamond Clarity Grading by GIA. GIA is the creator of the 4Cs of diamond quality used worldwide. Diamond clarity refers to the absence of inclusions and blemishes. While no diamond is perfectly pure, the closer it comes, the higher its value. Evaluating diamond clarity involves determining the number, size, relief, nature and position of these characteristics, as well as how they affect the overall appearance of the stone. The GIA Diamond Clarity Scale has 6 categories, and a total of 11 specific grades. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader, which is why expert and accurate assessment of diamond clarity is so critical. Learn about diamond clarity by watching this one-minute video, which includes fun and informative features like a diamond clarity chart. Learn more about diamonds with GIA’s gem encyclopeda: http://www.gia.edu/diamond • Diamond Quality Factors: http://www.gia.edu/diamond-quality-fa... • Diamond Description: http://www.gia.edu/diamond-description • Diamond Buyer’s Guide: http://www.gia.edu/diamond#buyers-guide • Diamond History and Lore: http://www.gia.edu/diamond-history-lore • Diamond Care and Cleaning Guide: http://www.gia.edu/diamond-care-cleaning • Color Grading “D-to-Z” Diamonds at the GIA Laboratory: http://www.gia.edu/gems-gemology/wint... Learn more about diamond and the mining of diamonds on the Official GIA Channel on YouTube • From Mine to Market, Part 1:    • Video   • Diamonds – From Mine to Market, Part 2:    • Video   • How to Choose a Diamond | GIA Diamond Grading Guide:    • How to Choose a Diamond: 10-Minute GI...   • How to Read a GIA Grading Report:    • How to Read a GIA Grading Report Vide...   • Diamond Cut, Clarity and Color:    • Diamond Cut, Clarity and Color by GIA   GIA exists to connect people to the understanding of gems. Our videos provide more information on diamonds, gems, and other related topics • Sapphire and Ruby Mine in Palin, Cambodia:    • River Mining in Pailin, Cambodia, by GIA   • Mining for Emerald in Brazil:    • Mining for Emeralds in Brazil by GIA   • What Attracts Us to Ruby | History:    • What Attracts Us to Ruby: History by GIA   SUBSCRIBE TO OUR CHANNEL    / officialgiachannel   FOLLOW US Facebook:   / gia4cs   Blog: http://4csblog.gia.edu/ Twitter:   / gianews   Pinterest:   / giapins   Google Plus: https://plus.google.com/1076590629596...