Top 10 most expensive diamond in world.

Which diamond is popular.
What are the benefits of diamonds.
Why diamond is so expensive.
Where is diamond found.
Which country diamond is best.
Diamond, a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications. Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth.

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Timestamps
00:00 Intro
00:20 TOP 10 - Moussaieff Red Diamond
01:27 TOP 9 - Heart of Eternity Diamond
02:07 TOP 8 - Perfect Pink Diamond
03:02 TOP 7 - Wittelsbach Diamond
03:52 TOP 6 - Winston Blue diamond
04:50 TOP 5 - Pink Star Diamond
05:45 TOP 4 - Centenary Diamond
06:35 TOP 3 - Hope Diamond
07:11 TOP 2 - Cullinan Diamond
07:54 TOP 1 - The Koh-I-Noor Diamond