"In my hand I have a precious stone, alexandrite. Here its weight is approximately one carat. Women in jewellery stores got used to see stones of such size" - the correspondent of All-Russia State Television and Radio Broadcasting Company NOVOSIBIRSK Oksana Tarasenko says. In the Novosibirsk geology institute alexandrite of such size can be grown up in a week.

One such "boat" weighs almost a half a kilogram — these are 2 thousands carat! Its precious content is a secondary product of scientific researches. Vladimir Gurov studies conditions of single crystal formation more than 20 years. During this time in his laboratory more than 500 kilograms of alexandrite were grown up and only experts can distinguish them from the natural.

Vladimir Gurov, the researcher of Geology and mineralogy Institute of the SB of the Russian Academy of Science: "There are growing traces - as the crystal grew. There can be specific inclusions which are not in natural stones, a little on content of additions, because the natural grew in other environment. But from the point of view of a customer – there are no any differences".

The beauty of alexandrite is in his inconstancy. In a daylight it is green, in artificial- is red. Unfortunately, this optical effect can be caught with a human eye, but not with a camera. Precious stones grow in these installations with temperature till two thousand degrees. In 7-10 days. Novosibirsk geologists can control colours and purity of a stone. Dream of the jeweler. Exactly they are the main customers of Novosibirsk single crystals. There is demand. Synthetic alexandrite in thousands times is cheaper than the natural.

The number of natural alexandrite is permanently reduced in the world. To find in Russia an ornament with a natural stone is pennies from heaven. It also will cost correspondingly. Novosibirsk scientists help the nature.