A kind of Mosan diamond must meet the requirements of D color, Belgian eight-heart and eight-arrow cutting and FL/IF clarity grade, and the Mosan diamond imported from Antwerp, Belgium can only be called magic star diamond. Moss stone looks very similar to natural diamonds.

Mosan stone, also known as Mosan diamond, can be traced back to the end of19th century. The word mosangshi comes from Dr. Henri Moissan, who discovered this mineral in Arizona crater in 1904. Mosan stone in the market is mostly synthetic, and natural Mosan stone is very rare and only exists in craters, and its color is mostly dark green and black.