Marking of Precious Metals Articles - Realized Requests

All the precious metals articles that are manufactured, imported or placed on the market in Montenegro, have to be labeled, tested and marked at the Bureau of Metrology. After the fineness degree is determined by testing and as well as the presence of valid labels, authenticity of precious metals articles is confirmed by marking.

Precious metals are rare metal chemical elements, of which most famous are gold and silver, and then platinum and palladium. For instance, gold is the most popular precious metals used throughout history as a means of payment. However, today even 85% of gold excavated is turned into jewelry; where at about 12% is used for industrial purposes. The rest of it is deposited in the treasuries of banks.

It is interesting that gold articles are not made of pure gold, instead precious metals alloys are used for the purpose. The goal is to improve mechanical features of the articles being made, so they wouldn't wear easily nor get to be too expensive.

Yellow gold is most commonly used alloy in the jewelry production and it is an alloy made of pure gold, silver and copper, containing 585 promille. Gold of 1000 promille fineness is marked as pure gold and its fineness as 24 carats. 14 carats gold is most common on our market.

Silver used to be used in jewelry production before. The main problem with silver jewelry is appearance of black layer on the surface, due to which a process of coating with a thin rhodium layer is done for the purpose of protection of this precious metal. Silver alloys have numerous applications in industry and electronics.

Platinum is white-silver precious metal. It is used for crafting expensive jewelry, often in combination with gold and diamonds. Platinum jewelry, due to high costs of its production, is much more expensive than gold. Lately, platinum is mostly used for coins and different medallions.

Palladium is a metal of silvery white color, to which silver, gold and copper are added as alloying elements.

Requests can be submitted every working day from 8 am until 2 pm.

The table contains information on number of tested and marked precious metals articles.


Table containing data on processed request
for the period 1 January 2018 to 31 December 2018