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We independently processed precious and semiprecious stones and supply to our partners


As vintage vixen Marilyn Monroe sang, diamonds are a girl’s best friend. They’ve come to symbolize the height of affluence and affection. Though the baubles have been in vogue only since the 1950s, these minerals have existed deep inside the Earth for billions of years.

And while they aren’t any rarer than rubies, emeralds or sapphires, diamonds’ unique properties put them a cut above the rest.

Diamond is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at standard conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. Those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells.

Because of its extremely rigid lattice, it can be contaminated by very few types of impurities, such as boron and nitrogen. Small amounts of defects or impurities (about one per million of lattice atoms) color diamond blue (boron), yellow (nitrogen), brown (lattice defects), green (radiation exposure), purple, pink, orange or red. Diamond also has relatively high optical dispersion (ability to disperse light of different colors).


Alexandrite is the most expensive variety of chrysoberyl. Alexandrite is named after Russian Tsar Alexander II and was first discovered in the Urals, allegedly in day of its birth.
Alexandrite forms small tabular, short-prismatic crystals. Large crystals of alexandrite are extremely rare, and transparent crystals of good quality and dense colors – stones unique.
The main advantage of alexandrite the ability to change color when you change the nature of light. This optical effect is due to the fact that chromium in alexandrite is in such condition that determines not only the presence of the color of the stone, but also its change during the transition from daylight to electric lighting.


Gemologists call sapphires corundum of all colors except red (ruby). The word “sapphire” comes from the Greek “saveiros” – blue, or blue stone, or from the name of the island of Sapphirine in the Arabian sea, but most likely, this word has a Hebrew origin.
Usually, when you say “sapphire”, mean blue sapphire. In all other cases, the color name is placed before the name of the stone:
·yellow sapphire
·green sapphire,
·pink sapphire,
·purple sapphire
·black sapphire etc.
Orange sapphire is called, the name of padparadscha, colorless – sapphire. Sapphire of all colours, except blue, also called fancy sapphire.


Emerald is a variety of beryl that is allocated by color. Emerald is called bright green, deep-green, less grass-green transparent variety of beryl.
Emerald is a precious stone high-class legally in Russia, the emerald – monetary value. Among the beryls the emerald is the second value of the stone (after a very rare red beryl – bixbite). Its large and clear blue-green samples can cost more than a diamond of the same size.
In comparison with other beryls, emeralds are always inclusions or other defects. The presence of inclusions greatly affect the price of emerald. Another important pricing factor is the color of emerald and its intensity. The most prized blue-green stones. The brighter and more intense green color, the more valuable the emerald. But there are very attractive emeralds are a light green color. Quite a few dark emeralds lose their brightness, the play of light.
Usually it is cut step-cut (also called emerald), but the stones with inclusions, turbid, splits are processed in cabochons. Occasionally of the largest emeralds produce various items. So in the Vienna art-industrial Museum there is a vase with a height of 10 cm and a mass 2681 CT carved in Milan in the XVI century from the dark green of the Colombian emerald.
The size of the crystals of emerald are different: gem-quality crystals are often small. Currently, along with the natural, widely used and artificially grown emeralds. Two basic method of growing synthetic emeralds, hydrothermal and flux.
Long doublets are made from two smaller emeralds or emerald or any other stone. In addition, as the simulations used minerals of green color, it is usually less expensive and more common.


Ruby is called red transparent variety of corundum varying intensity of color. The name ruby comes from the Latin “ruber” – red. Pink and also purple transparent corundum belong to the sapphires.
Only in 1800 it was established that ruby and sapphire are varieties of corundum. Prior to that was named a ruby and red spinel and garnet.
The color is ruby bright red, dark red or purple-red; the color is due to chromium. The most prized rubies are “pigeon blood color” is pure red with a slight purple tint.
Colouring is often distributed unevenly in spots or stripes.
There is a Gemological problem: where the “ends” ruby “begins” cheaper pink sapphire. Unambiguous boundaries in the color transition doesn’t exist is at present controversial. Various Gemological schools solve this problem on its own, but the opinions of all market participants diverge.
The nature of the ruby of jewelry quality is extremely rare.
Ruby is most often found in the form of shapeless grains, pebbles, and rarely in the form of short – or long-prismatic crystals of crystals.


Amethyst – purple the difference between crystalline quartz, a very popular jewelry stone. If he wasn’t so widespread, it would become one of the most expensive jewelry stones. The name “amethyst” comes from the Greek a-meshystos — “not drinking”. It was believed that amethyst reverses the effects of alcohol, but more likely it was so named because of the color similar to the color of some wines.
Amethyst can form elongated prismatic crystals that end with a hexagonal pyramid or form beautiful druses. As collectors specimen amethyst is popular for its color, a beautiful shape crystals.
The color of the amethyst is private, and even other more expensive purple gemstones are compared with the color of the amethyst.
The color caused by iron impurity, resistant to a temperature of 300-500о With, sometimes fades under direct sunlight, and the annealing goes to yellow, red-brown – get a citrine and rarer green – get a prasiolite.
Both natural and synthetic amethyst loose their color with time. Every 25 to 30 years the intensity of coloration of amethyst is reduced by 10…20%.