The Very Highest Quality Diamonds...
Natural fancy coloured diamonds are very rare and expensive. Purple is one of the rarest and most desirable colours. The attempted Millennium Dome Diamond Robbery was an attempt to steal 12 large diamonds valued at a total of £200 million, an average of over £16 million each. Eleven out of the twelve diamonds were fancy coloured diamonds! Purple is one of the rarest and most desirable colours. A purple diamond recently assessed by the British Gemmological Institute has been estimated to be worth over £14 million, and to be the most valuable natural object in existence on a weight for weight basis. This stone weighs between four and five carats. There is a larger purple diamond on display at a Paris museum, but its colour is paler.
Is It Natural?
Natural purple diamonds are so rare that most jewellers have never seen one, and will never own one. In recent years, methods of producing intensely coloured diamonds, including fancy purple, have been developed. We believe that the process probably recreates the conditions which existed millions of years ago to produce natural fancy coloured stones. The treatment can only work with a small minority of diamonds, and involves irradiating them causing the colour change, usually followed by heat treatment to stabilise the colour. The purple diamonds we currently have available are enhanced or treated. If this fact puts you off owning one, then please stop to consider that every diamond has been enhanced by facetting, and most coloured gemstones are heat treated to enhance their colour. We will add a page devoted to gemstone treatments when we have more time.
In our first twenty years of designing diamond rings, we had only owned 5 coloured diamonds, four of which were certificated as natural. Now that treated stones are available, we intend to make full use of their inherent beauty in our rings. Even enhanced (treated) purple diamonds are not easy to find, so our stock selection will never be very extensive. Natural purple diamonds remain so rare, that we don't bother trying to find any! Any comments we make about purple diamonds will relate to treated ones unless the context clearly indicates otherwise.
Quality for quality, fancy purple diamonds are more expensive than ordinary near-colourless ones. The processing adds to the costs, so it is generally only worth treating diamonds of high clarity. The diamonds selected for treatment usually start off a one of the less desirable colours such as brown or yellow. There is no certainty about the final colour that any particular stone will be after treatment.
What About Sapphires?
Why bother to get so excited about purple diamonds, when we could use sapphires instead, because sapphire come in almost every colour in addition to blue? The very best sapphires are quite expensive, and they still do not have the sparkle that purple diamonds possess. In addition even though sapphires are very hard and durable, diamonds are many times harder and even more durable.
We design and create diamond rings, and we have found that many other people share our love of purple diamonds and other fancy colours. So far we have only made a small number of rings using purple diamonds, but we are busy right now looking for new ones. The problem seems to be that we sell them as fast as we can find the diamonds, and make the rings.
Pendants & Ear-Rings
We could make a pendant, but have never yet seen a matching pair of purple diamonds. Because of the variation in colours, and the small numbers of purple diamonds we get to see, it is not easy to find matching pairs of purple diamonds for ear-rings. Watch this space. Actually look out for new links near the top left of this page.
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