Why is a diamond so hard?

Diamonds are formed 140 to 250 kilometres below the Earth's surface, where carbon is compressed under extreme pressure at a temperature of 1,000 degrees Celsius. That is the reason why a diamond is so hard. It is even the hardest raw material to be found on Earth. In volcano eruptions, rough diamonds are carried with magma and pushed to the surface.

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0.50 carat solitaire ring in yellow gold with round diamond and four prongs

0.50 Ct
G colour, VS2 clarity, VG cut
18 Kt yellow gold

From £ 1.920,00 (excl. VAT)

0.50 carat solitaire ring in white gold with four prongs and side diamonds

0.50 Ct
G colour, VS2 clarity, VG cut
18 Kt white gold with palladium

From £ 2.110,00 (excl. VAT)

0.90 carat solitaire diamond ring in white gold with side diamonds

0.90 Ct
H colour, SI1 clarity, VG cut
18 Kt white gold with palladium

From £ 2.310,00 (excl. VAT)

1.00 carat solitaire ring in white gold with side diamonds

1.00 Ct
G colour, VS2 clarity, VG cut
18 Kt white gold with palladium

From £ 2.980,00 (excl. VAT)

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