Question

why diamond is most expensive gemstones

Answer 1

Blue Diamond – $3.93 million per carat. The most expensive gemstones in the world are colored diamonds. ... The Oppenheimer Blue diamond is the largest Vivid Blue diamond to appear at an auction and was sold $57.5 million for weighing 14.62-carats which makes it worth $3.93 million per carat.

Answer 2

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$\huge\text{\underline{Diamond:}}$


$\bold{\underline{Properties\:of\:diamond:}}$


=> $\sf{\underline{Hardness\:of\:diamond.}}$

=> $\sf{\underline{Refractive\:index\:of\:diamond:}}$

Which is pretty high (2.417).

=> $\sf{\underline{Due\:to\:this\:fact,}}$

Diamond shows an important application in optics and jewellery.


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