Fancy Colour Diamonds

Fantastic colour - fantastic investment opportunities

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Diamonds in radiant colours

Colour in all its facets

In general, diamonds in pure white are considered particularly valuable. However, there is one exception: fancy colour diamonds.

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"Fancy" means diamonds that have a strong and full colour. Fancy diamonds come in almost all colours. The rarest and most valuable colours are intense yellow, pink, green, orange, blue and red.

The experts of the Gemological Institute of America (GIA) estimate that only about 1 carat out of 10,000 carats of cut stones has a fancy colour. The frequency of intense hues is many times smaller.

Coloured diamonds are a caprice of nature. Their colour is caused by specific light absorption, which is triggered by fine structural defects in the atomic lattice. The stones are therefore not actually coloured, but merely show a deviating optical-physical light absorption of the visible light spectrum. Depending on the colour, certain areas of the atomic lattice are not occupied by atoms or are occupied by foreign atoms.

In yellow diamonds, for example, embedded nitrogen atoms absorb the wavelengths of the blue light component. Thus, the diamond appears in the complementary colour of blue: in yellow.

That the colour is of natural origin and not the result of a treatment of the diamond is ensured by internationally recognised certificates of independent gemmological non-profit grading institutes (such as GIA, IGI, HRD).

Their rarity often makes it very difficult to find a coloured diamond in a specific colour, with a specific intensity and at the same time the desired cut. This makes rare fancy colour diamonds appear not only visually attractive, but also as investment objects with prospective value enhancement potential.

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Why fancy colour diamonds are so valuable

Highest values

Decisive for the value of fancy diamonds are the colour and its intensity.

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Most coloured diamonds have only a low colour intensity and appear rather pale. The more intense the colour shines, the rarer these diamonds occur and are traded at correspondingly high prices. Cut and clarity used to contribute less to the price, but in recent years there has been a slow alignment with the valuation of colourless diamonds. Internal inclusions and external blemishes that affect the colour effect, however, lead to a noticeable devaluation of the stone.

In relation, fancy diamonds of intense, rare colour can be many times more valuable and expensive than colourless diamonds for the same size and clarity. Again, supply and demand determine the prices for each colour variety. Human nature also influences trends for coloured diamonds. What is hard to get and what hardly anyone else owns is considered particularly desirable. This fact and certain fashion trends (e.g. due to coloured engagement rings among prominent couples) can lead to unexpected price developments and temporarily increase prices for certain diamond colours.

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From pale to deeply coloured

The colour intensity

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The intensity describes the colour depth or the colour strength. Besides the actual colour, it is the second important criterion for evaluating a colour diamond. The more intense the colour, the more valuable the diamond.

Diamonds from the weaker colour intensities such as faint, very light or light occur more frequently than diamonds with more intensive colouring such as fancy, fancy intense, vivid or deep. "Vivid" stands for the most valuable colour intensity. Their share of all coloured diamonds is estimated at only 6 percent.

With coloured diamonds, the ideal cut is of particular importance, as this is what allows the colour to fully come to the fore. In the case of colourless diamonds, the cut should enhance the brilliance while at the same time reflecting light as colourlessly as possible. The cut of coloured diamonds follows other challenges. The shape of the cut must be optimised to the colour in order to increase the time that the light is reflected in the stone before it emerges again. In this way, the colourfulness is accentuated by the cut. Fantasy cuts such as cushion, radiant, heart and pear are particularly popular. The most important thing here is ideal proportions. If the cut is too flat, the colour will appear rather pale.

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As varied as a rainbow

The colour tone

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The reasons for an expression as a coloured diamond are different causes in the atomic lattice, depending on the hue. Most coloured diamonds cannot be attributed to only one primary colour. In addition to their main colour, they also have one or two coloured overtones. Thus, the stone appears in a varied mixed colour. For colour designation, the overtones are placed in front of the main colour.

The overtones also influence the value of the stones. Brown overtones greatly reduce the value of yellow and pink diamonds. Overtones such as orange, purple and blue have a neutral effect on the value, and in special combinations even significantly increase the value.

The most popular diamond colours of natural origin are blue, yellow, pink and red.

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The Rolls Royce among diamonds

Argyle diamonds

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The Argyle diamond mine in Australia was the largest producer of diamonds in the world. The stones mined were 80% brown, 15% yellow and 4% white diamonds. Only 1% of the mined quantity were pink, green and blue hues. This mine alone produced about 90% of all diamonds discovered worldwide to date.

The Argyle diamond mine has ceased operations at the end of 2020, as the deposits are almost exhausted and thus profitable mining is no longer possible. This will certainly lead to a decline in the availability of pink diamonds on the world market and make the already rare Australian pink diamonds even more desirable.

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Pink diamonds are experiencing the highest value growth in the coloured diamond sector, with an average investment growth of 15%. Over the past 15 years, pink diamond prices have never dropped. Many experts do not believe they will ever go down. 

At Leiser Diamonds we have excellent access to these pink diamonds. All our Australian pink diamonds come with an argyle lot number and/or certificate that guarantees their quality and authenticity.

After several months of speculation, it is now clear that the Argylemine will not be celebrating a hoped-for reopening.
 https://www.riotinto.com/operations/australia/argyle

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The most important colours

Desired colours

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Summary

As a specialist for coloured investment diamonds, we offer a hand in this complex market and help you to make sustainable decisions. Our years of experience in trading coloured diamonds and our close contact with selected dealers in this field allow you to make a secure investment with great development potential.

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