BijanDiamonds.com Dictionary
Old European Cut:
An old European cut diamond is an old style of faceting a diamond in a round shape, hand worked, in a less than perfect fashion. This style enabled the diamonds 58 facets to show broader reflective bands of brilliance returning back up through the top portion of the diamond (the table facet). Old European cut diamonds continued the characteristic of the old cuts with their open culet and higher crown. It is similar to the old mine cut, but is round rather than squarish and has 58 facets.