The sky is just an enormous blue Sapphire stone into which the earth is entrenched – this belief was cherished in ancient times. And, in fact, does there exist a better image to describe the attractiveness of an immaculate Sapphire of purest blue? This gemstone exists in all the shades of blue skies, from the deep blue of evening skies to the bright and deep blue of a clear and gorgeous summer sky which charms all people. The superb gemstone, however, also comes in many other colours, not only in the transparent greyish misty blue of far horizons, but also displaying the bright fireworks of sunset colours – yellow, pink, orange and purple. So Sapphires are really and truly heavenly stones, although they are being found in the hard soil of our so-called "blue planet”.

Blue is Sapphire’s main colour. Blue is also the favourite colour of about 50 per cent of the population, men and women alike. This colour, which is strongly connected with sapphire, is also linked to emotions such as compassion and harmony, friendship and faithfulness. These emotions belong to features which are permanent and reliable – emotions where overwhelming and fierce passion is not the main element, but rather composure, mutual understanding and unshakeable trust. Sapphire blue has thus become a colour related to anything permanent and reliable, and this is one of the reasons why women in many countries settle on Sapphire for their engagement rings. Sapphire symbolises faithfulness and truthfulness, while at the same time expressing love and desire. The most famous musical example for this melancholic shade of blue can be found in George Gershwin’s "Rhapsody in Blue". Sapphire’s blue colour is also evoked where clear competence and controlled brainwork are the issue. After all, the first computer ever to wrangle a victory from a chess grandmaster and world champion was named "Deep Blue".

Depending on the place of occurrence the depth of colour as well as the shade displayed by the cut stones will differ, which in turn offers a wider range to select from. So shall a woman who has decided on a sapphire go for the medium blue stone evoking the summer skies even on a rainy day? Or should she rather favour a lighter blue, because it sparkles radiantly also in the evening? Bright daylight makes most Sapphires shine more vibrantly than the somewhat muted artificial light. Therefore the most highly cherished colour for blue sapphires is not the darkest blue as is often claimed, but a deep and satiated blue, which even in dim artificial light remains to appear blue.
For experts and connoisseurs the Kashmir-colour with its like velvet sheen is considered the most stunning and valuable shade. The wonderful Kashmir gemstones, which were found in 1880 after an avalanche had come down in a height of 5000 m, and which were intensively mined then for eight years, have for all times set the standard for our ideas of the colour of a top quality Sapphire. Typical for the Kashmir colour is a pure and concentrated blue, which is enhanced by a fine, silky gloss. It is reported that this colour does not change in artificial light. But Burma-colour is also considered particularly precious. It ranges from rich royal blue to deep cornflower blue.

The oldest Sapphire mines are located in Ceylon, today called Sri Lanka, where gemstones were mined in ancient times. The expert recognises Ceylon sapphires from the radiance and brilliance of their light to medium blue colour. Most blue Sapphires, however, come from Thailand or Australia.