Only gem-quality diamonds' colour matters, and only 20% of all diamonds mined a gem-quality.
The colour of diamonds are blue, green, black, transparent white, pink, violet, orange, purple and red, yellow and brown with all manner of joined colour-name combinations.
Some diamonds are enhananced to intensify colours, which also devalues the diamonds.
You can read more, below.
'Regular diamonds' are diamonds described without colour. 'Chocolate diamonds' are brown diamonds that include a description of the colour.
Faceted, finished brown diamonds are simply diamonds within that colour range. Chocolate diamonds are an intense brown colour.
Diamonds are valued by cut, colour, clarity and colour. Without those details, pricing 19 diamonds is not possible.
Man-made diamonds can be almost any colour, just like natural diamonds. The colour of a diamond will not be the sole definition of almost any colour of diamond.
Your answer depends on the diamond. All diamonds are valued according to their clarity, colour, carat weight and colour. White diamonds that are low on the 'while colour scale' -- L to Z (giving them a yellow cast) are less valuable than yellow diamonds evaluated as yellow colour.
Gemstone diamonds of whatever colour are transparent.
Diamonds are rated according to the colour, clarity, carat weight and cut.
Cut diamonds are valued by their cut, clarity, carat weight and colour.
Sometimes. Diamonds can come in a variety of different colour. Pink diamonds are actually among the world's rarest and most expensive diamonds.
For a 'colourless' or 'white' diamonds, the highest colour grade is D; for coloured diamonds, the highest colour grade is Fancy Vivid.
Brown diamonds are the most common colour of diamonds mined, of gem-quality. Only about 20% of all diamonds mined are of gem quality.
Innumerable, really. Eighty percent of all diamonds mined are industrial diamonds, with a separate classification for valuation, including colour. Only 20% of all diamonds a gemstones, with a named colour. That said, because diamonds are natural, there are as many colours as Mother Nature provides. You can review the chart for 'white' diamond colour, below. As well, you can read the names of 27 types of coloured diamonds, below.