Our coloured diamonds are
graded on standards set by the GIA.
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Carat
The weight of the diamond.
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Clarity
The type and number of inclusions.
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Cut
The shape and cut of the diamond.
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Colour
The hues & tinges of the diamond.
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Red Diamonds
Coloured by intense pressure and a malformation in structure, these red diamonds for sale hold the rarest – and most valuable – colouring amongst all fancy coloured diamonds for sale in the USA.
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Orange Diamonds
Blue and yellow light cling to specifically arranged nitrogen atoms, providing it with a unique fancy orange diamond colouring.
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Yellow Diamonds
A common colour that is caused by nitrogen atoms. Unlike orange, atoms in yellow coloured diamonds for sale don’t need a specific arrangement, due in part to their similarity to carbon atoms.
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Green Diamonds
Unlike other diamond colours, green diamonds for sale in Canada and the USA get their colouring after formation from direct alpha, beta, and gamma particle radiation. The deeper the green, the rarer the diamond.
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Blue Diamonds
This beautiful blue diamond colour is caused when boron contaminates the structure of a diamond during formation.
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Purple Diamonds
While it’s not certain exactly how fancy purple diamonds in Canada are formed, they are an extremely rare & valuable colour of diamond.
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Pink Diamonds
Much like red diamonds, the colouring is caused by a deformity in the structure that refracts light and absorbs green light, shining throughout the fancy pink coloured diamond.
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Violet Diamonds
A hard to find diamond colour, when found, they tend to be small. While fancy violet diamonds for sale are a colour of their own, their chemical composition is a combination between blue and purple.
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Brown Diamonds
Along with yellow & orange diamonds, brown diamonds in the USA and Canada get their colouring from nitrogen, as well as defects in the crystal’s structure.
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Grey Diamonds
High amounts of hydrogen in the diamond’s composition cause it to absorb each colour of light equally, sort of how mixing each colour of paint with a bit of white makes grey.
Who We Are
Our goal at Hard Carbon is to provide you with our many years of experience and expertise, and guide you towards the best fancy coloured diamond - whether it’s to wear on your finger, or fill out your investment portfolio.
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