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Natural black diamonds are rare. They are due to dark graphite inclusions. Their rarity makes them valuable. Most black diamonds are synthetic and made by heat treating low quality diamonds. The price of a synthetic black diamond is lower than that of white diamonds.

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What is the most valuable diamond in the world?

the hope diamond is the largest. It is in the Smithsonian Museum in Washington D.C.


Most valuable blue diamond?

in the Smithsonian museum of natural history in Washington dc


Is diamond more valuable than platinum?

Diamonds and platinum are both valuable and expensive commodities. The worth of one compared to the other largely depends on the quality and color.


Which cut of diamond is most valuable?

How well it is cut determines a diamond's brilliance. It is the skill of the cutter that unlocks the natural beauty of a diamond, revealing all of its hidden fire and brilliance. Most diamonds are cut with a full 58 facets and it is important that these are cut to precise angles. A diamond that is cut well will reflect light from one facet to another and then back out through the top of the diamond. Only a well-cut diamond will really sparkle. When the term "cut" is mentioned, most consumers think of shape, but shape and cut are different. Diamonds are cut and fashioned in different shapes, including round brilliant, pear, oval, marquise, princess cut, emerald cut (rectangular), heart, and triangle. The most popular shape is the round brilliant. The other shapes are referred to as fancy-shapes. The value of every individual diamond is a combination of its colour, clarity, carat weight and cut.


Are diamonds worth a lot of money?

Generally, yes. From MostExpensive.com: "The world's most expensive diamond sold for $24.3 million, beating a previous record of $16.5 million for a 100-carat diamond in 1995. While the [35.56 carat] Wittelsbach is the most expensive diamond ever sold at auction -- and likely the most expensive diamond ever sold, period -- the world-famous Hope diamond [of about the same colour] would no doubt put the Wittelsbach to shame were it ever sold." Read more about this stone, below. On a more realistic level, because diamonds are so valuable, most people who own diamonds -- and other precious gems -- insure them against loss. Buying a diamond is a major purchase and often a major investment. Unlike buying a car, for example, that can end up scrapped in a junk yard over time, a diamond will always maintain its (gemologist's appraised) value.