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Color chips or color samples from a plastic pellet manufacturer that enables customers to evaluate the color range as molded objects to see final effects. A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or ...
Martha Bonnie Diamond (May 1, 1944 – December 30, 2023) was an American painter. Her paintings first gained public attention in the 1980s [1] and are included in the permanent collections of the Whitney Museum of American Art, the Museum of Modern Art, New York, and many other institutions.
The colors of the chart were described by McCamy et al. with colorimetric measurements using the CIE 1931 2° standard observer and Illuminant C, and also in terms of the Munsell color system. Using measured reflectance spectra, it is possible to derive CIELAB coordinates for Illuminants D 65 and D 50 and coordinates in sRGB ( D 65 ).
If two diamonds of equal weight are inspected there can be a noticeable difference in size when viewed from above; arguably the most important view. A well-cut 0.90ct diamond, for example, could have the same width as a poorly cut 1.00ct diamond. This phenomenon is known as spread. Cut also affects the color of a diamond.
The Inter-Society Color Council records Archived 2015-01-03 at the Wayback Machine at Hagley Museum and Library contain records from the British Colour Council including dictionaries of colour standards and seasonal colour cards; and royal colour cards, correspondence, press clippings, swatches, and commemorative publications celebrating ...
Color grading of diamonds was performed as a step of sorting rough diamonds for sale by the London Diamond Syndicate. As the diamond trade developed, early diamond grades were introduced. Without any co-operative development, these early grading systems lacked standard nomenclature and consistency. Some early grading scales were; I, II, III; A, AA, AAA; A, B, C. Numerous terms