These eLearn Diamonds show extremes in 4Cs. All are GIA graded and certified. They are one carat each of equal cost. The top colour D is has eye visible flaws. The bad cut diamond is a good colour: G but has inclusions many can see. The most firey bottom left is ' naked eye clean' but shows a hint of yellowish in some light. The bottom right is obviously yellow and shallower so the biggest diamond for it's 1ct weight; you are paying for the higher clarity and Garry Holloway thinks it's a bad trade off. [ Ссылка ]

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