An old European cut is an antique round diamond with 58 facets, from the 1870s to about 1930. The bruting machine made its round outline possible.
In more detail
It keeps the old mine's facet plan on a round outline. It is thinner than the cushion-shaped cuts before it and has a small table; our model's table is 45%. Most antique round diamonds are old Europeans.
Related terms
- Old mine cut: An old mine cut is an antique cushion-shaped diamond of the 1700s and 1800s. It has the Peruzzi's 58 facets, cut more evenly by hand.
- Bruting: Bruting is shaping the outline of a diamond, usually round, by grinding it against another diamond.
- Tolkowsky ideal cut: The Tolkowsky ideal cut is the round brilliant that Marcel Tolkowsky calculated in his 1919 book Diamond Design. It has a 40.75° (40° 45′) pavilion, a 34.5° (34° 30′) crown and a 53% table.
- Round brilliant: A round brilliant is a round diamond with the brilliant facet plan. It has 33 crown and 24 pavilion facets: 57 in all, or 58 with a culet.