The largest meteorite diamond in the world is called CullinanDiamond. The Cullinan diamond was discovered in PremierMine, South Africa on June 25th, 1905. The weight of this rough stone is as high as 3 106.75 carats, equivalent to 62 1.35 grams, and it is the largest rough stone known in the world.

Cullinan diamonds are cut into many diamonds because of their huge volume and high quality. The two largest ones are Cullinani 1 and Cullinani 2.

Cullinan 1, also known as "GreatStarofAfrica", is a pear-shaped diamond weighing 530.2 carats with 74 facets. Cullinan 1 is embedded in the scepter of the king of England and is an important part of British royal jewels.

Cullinan 2 is a square diamond weighing 3 17.4 carats with 66 facets. This diamond set in the crown of the king of England is another treasure of British royal jewels.

Except Cullinan 1 and No.2, other diamonds are cut from Cullinan's original stone, including Cullinan No.3, No.4 and No.5, which are used to make various jewelry and handicrafts.

Generally speaking, Cullinan diamond is the largest meteorite diamond in the world, and its cut diamond has become a treasure in British royal jewelry, with high historical, cultural and economic value.