Diamonds are the most precious treasures in jewelry, and their cut plays a decisive influence on the appearance and characteristics of diamonds. When it comes to choosing a diamond, old European cut diamonds and round brilliant cut diamonds are two options that get a lot of attention. This article will compare these two cuts in terms of table size, facet shape, size, finished girdle, precision and symmetry, and color and brightness. Table dimensions:
Older European cut diamonds retain a large table, usually 53% or less of the diameter of the diamond, while round brilliant cut diamonds have a larger table, ranging from 52% to 60% in size.

Facet shape:
Old European cut diamonds have triangular facets, while round diamonds have thinner facets. Additionally, older European cuts also have longer facets on the lower half, accounting for at least 60% of the diamond's total depth.

size:
The culet size of old European diamonds can be observed by the table size of the diamond, while the culet size of round brilliant cut diamonds varies. It is generally recommended to choose a round brilliant cut diamond without a protruding culet.

Complete the belt:
Old European cut diamonds often had a frosted or frosted girdle, while round brilliant cut diamonds generally had a faceted girdle, a common feature of modern diamonds.

Precision and symmetry:
Because ancient European cut diamonds were cut by hand, they lacked symmetry and precision compared to modern diamonds. Modern round brilliant cut diamonds are cut using complex, technologically advanced processes to achieve greater precision and symmetry.

Color and brightness:
The ancient European cut diamond focused on highlighting the color of the diamond, while the modern round brilliant cut diamond mainly pursues maximum brightness. This is because ancient European cuts were cut by hand before the advent of modern imaging and laser cutting technology.

Choosing which diamond cut to use comes down to personal preference. Old European cut diamonds have a unique hand-cut appearance and antique feel, while modern round brilliant cut diamonds strive for greater brilliance and precision. When choosing, consider aspects such as table size, facet shape, size, finish girdle, precision and symmetry, and color and brightness, and make your choice based on personal preference and budget.