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Inclusions in stones is one of the diagnostic signs, because a detailed study of them can often help establish the nature ...

Everyone who ever bought or wanted to buy expensive jewelry with precious stones in the secondary market, faced with the n ...

Verification of the gemstone for authenticity, as a rule, consists in checking the gemstone (insert) for compliance with t ...

When buying a diamond, it is important to understand which components form the price of a diamond. ...

For the first time, the term “Pigeon’s Blood” (“Pigeon Blood”) was introduced by GRS (Gemresearch Swisslab) in 1996 for th ...


Aventurine is called a rock, which is a type of quartzite. It is characterized by a fine or fine-grained structure and mainly quartz composition. A distinctive feature of aventurine is the presence in it of numerous small inclusions of mica (most often) or hematite and chlorite (rarely), which create a sparkling effect when light hits the stone.

Everyone knows a green gem - an emerald, but few thought about how it is formed. Currently, all emerald deposits are divided into three categories: pegmatite, greisen and telethermal.

When we hear the word "turquoise" in our head immediately there is an idea of ​​a light blue stone with dark veins. However, few people know that the bulk of the so-called turquoise in the jewelry market is fakes.

The generally accepted world classification system for diamonds is based on the presence or absence of nitrogen impurities in them. In accordance with this criterion, two types of diamonds are distinguished: I - nitrogen and II - nitrogen-free (low-nitrogen).

Charoite is an ornamental stone with a lilac color of different saturation. Charoite belongs to the group of pyroxenes of the subclass of chain silicates. 

Moscow Gemological Center
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Location MGC
Moscow 2nd Zvenigorodskaya St,
d. 13 p. 37, office 2 (1st floor)
Метро Ulitsa 1905 goda
Work mode:
Mon - Fri 10 am - 7 pm
Sat-Sun - weekend
Way from subway
Guest Parking
Available by appointment by  phone
  • The office is a 10-minute walk from the metro station Ulitsa 1905 goda. Exit to the city on Krasnopresnenskaya Zastava square (last carriage from the center), go through the underpass to the other side Zvenigorodskoe highway (to go to the end of the transition).
  • After exiting the underpass, immediately turn right and go straight at the Zvenigorod highway to the street Sergey Makeev.
  • Not crossing the intersection to turn left. To walk on the left side of the street to the brick building with the air conditioning on the facade (third house after the junction).
  • Go through gate and turn right, the entrance porch under a sign "the Moscow Gemological center".