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2. Diamond cut - Wikipedia

   en.wikipedia.org/wiki/Diamond_cut

   HCA: defining ideal cut diamonds is a detailed explanation of the "Holloway Cut Adviser". A web service that uses this software is available. Malecka, Anna (2017). Naming of the Koh-i-Noor and the Origin of Mughal-Cut Diamonds, The Journal of Gemmology, no. 4. 38(8). OctoNus Software has posted several diamond cut studies, by various authors ...

3. Diamond color - Wikipedia

   en.wikipedia.org/wiki/Diamond_color

   grade and electronic colorimeter scale [11] grade and electronic colorimeter scale [11] grade [12] grade and description [12] grade for .50ct and over [13] grade for under .50ct: series 1 scale [12] series 2 scale [12] D Colorless: 0 0–0.49 0 0–0.75 Exceptional white + Exceptional white + Colorless: River White Finest White Jager E 0.5 0.5 ...

4. Brilliant (diamond cut) - Wikipedia

   en.wikipedia.org/wiki/Brilliant_(diamond_cut)

   Diamond proportions and facets, for the round brilliant cut. The original round brilliant-cut was developed by Marcel Tolkowsky in 1919. The ideal proportions are 100% diameter, 53% table, 43.1% pavilion and 16.2% crown. The girdle and culet (if any—not part of

5. Diamond cutting - Wikipedia

   en.wikipedia.org/wiki/Diamond_cutting

   An example of this is the marquise cut diamond which was popular in the 1970s to 1980s. In later decades, jewelers had little success in selling this shape in comparison to other shapes like the oval or pear shape. [citation needed] The marquise can be cut into an oval diamond by any diamond cutter with a loss of 5 to 10% in total weight.

6. Diamond clarity - Wikipedia

   en.wikipedia.org/wiki/Diamond_clarity

   The Internally Flawless grade gave diamond manufacturers a choice to leave blemishes on the surface of the stone, and achieve a grade higher than VVS 1. [2] The second change made to the grading system was the introduction of the I 3 grade. This change was made in response to a growing number of diamonds of very low clarity being cut. [2]

7. What did King Richard III sound like? State-of-the-art ... - AOL

   www.aol.com/news/did-king-richard-iii-sound...

   24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in. ... CT scans of the skeleton have since helped scientists reconstruct his face and body, ...