Articles

A coin in the shape of an emerald was issued in Switzerland. The idea belongs to the company Helvetic Mint, which is a coin factory. The face value of this coin is 2 dollars, and it is made of silver of Ag .999 pure silver.

Opsydia (University of Oxford spin-out) has developed a new technology for making marks inside diamonds.

Magnificent Jewels and Jadeite auction was an important and highly-anticipated event. Sotheby’s auction house has selected exquisite items, each of which was worthy of attention.

Gold items created during the existence of the Russian Empire are marked with the number 56 (as seen on the ring). Apart from the millesimal fineness mark, the item must have the coat of arms of the locality or the initials of the jeweler engraved on it.