Diamonds Shapes

Round Brilliant Cut Diamonds

What is Round Brilliant Cut Diamond

What is Round Cut Diamonds?

Round Cut Diamonds, Gemistone

The round cut diamonds, or called round brilliant cut diamond, is the most well-known and most popular cut for diamonds and extremely popular for diamond rings, especially the diamond engagement ring. No diamond shape has been so extensively studied and optimized for maximum brilliance in the light as the round brilliant diamond.

The round cut diamonds, also called the round brilliant, is the classic diamond shape most associated with diamond by most of us. The round brilliant diamond is the oldest cut for diamonds and by far the most studied by diamond cutters to perfect in terms of maximizing the light reflection to obtain as much brilliance from the diamond as possible.

A round brilliant cut diamonds has 58 facets (planes) distributed over the crown, girdle, and pavilion, the dimensions, and angles of which are precisely calculated using a formula to optimize the light reflections of the stone. The round brilliant has set the standard for all other diamond shapes.

Despite the development of numerous other diamond cuts, the round brilliant diamond is still by far the most popular. No less than 75% of all diamonds traded are round brilliants. Especially for diamond engagement rings, the round brilliant remains an absolute winner.

History of the Round Cut Diamonds

The first round cut diamond was the Old European cut. The brilliant cut diamond we know today is also called as the Modern Brilliant cut.

Old European Cut

The history of the round cut diamonds, therefore, begins with the Old European cut. The American diamond polisher Henry Morse, together with engineer Charles Field, developed a machine that could polish diamonds better. At that time, diamonds were not yet beautifully round and symmetrically cut. Morse had the following ideas to improve the diamond sharpening:

  • Rounder Cut the Diamond
  • Cut diamonds more symmetrically
  • A narrower table
  • Octagonal facets on the table
  • Deeper Pavilion
  • Raising the crown by lengthening the facets
  • Shorter pavilion facets

These changes were initially not accepted by the diamond cutters in Europe. However, this changed when the machine was renewes and an electrically powered saw was added. To ensure that the cutting loss was kept to a minimum. Ultimately, this meant a revolution within the diamond sector because diamonds could be cut better and more accurately. The Old European cut as much ground during the 19 e and 20 e century.

Modern Brilliant Cut

Morse continued to improve the diamond. He had some ideas to perfect the cut. To further increase the clarity of the diamond, the angles of the crown and the pavilion had to be reduces. The table and the collet became smaller and the pavilion got larger facets. This was to provide more brilliance and also increase the clarity of the diamond.

Round Cut Diamonds | Distribution of the Facets

Calculating the facets and the correct proportions has been made even better by computer models. A well-cut modern brilliant diamond today has 56 or 57 facets. The difference is mainly in the collet. Facets are a type of cut needed to finally form the diamond. The number of facets of a Round cut brilliant diamond can be found below:

Round Cut Diamonds | Distribution of the Facets
  • 8 facets on the table (table)
  • 8 facets on the bezel (bezel)
  • 16 facets above girdle (upper girdle)
  • 16 facets under girdle (lower girdle)
  • 8 facets on the pavilion (pavilion)
  • 1 facet Kollet

The value of a diamond is partly determines by the 4 C’s.

  • Carat:  It is the weight of the stone
  • Color: Color of the stone, from white to yellow (D to Z).
  • Clarity: Clarity is determines by the number of conclusions, defects, in the diamond.
  • Cut/Sharps: The quality of the cut. Proportions, finish, and symmetry of grinding
  • For more information about the 4 C’s Of Diamonds, click here; 4Cs Of Diamonds

Round Cut Diamond Choose:-

Thanks to the enormous popularity of the round cut, there is a very wide range of round brilliant diamonds so that it is much easier to find a stone with the desired cut quality, color, clarity, and weight that fits within your budget.

When you choose a round brilliant, you automatically choose a diamond that shines as much as possible in the light and shows the most beautiful play of colors. To get the best possible result, it is important to choose a stone with the best possible cutting quality, which is also very well polished and scores very well in terms of symmetry.

Our minimum recommendation for buying round cut brilliant diamonds is as follows (however, these recommendations are no more than our personal opinion, which may differ from your taste or preference):

  • Grinding quality: good
  • Colour: G
  • Purity: SI2
  • Depth %: 57-65%
  • Table %: 51-64%

Round Brilliant Diamond Rings

Round Cut Diamond Rings

Round brilliant cut diamonds are the traditional and most popular choice for diamond engagement rings, both for solitaire and side stone settings. Usually, a claw setting with 4 or 6 feet is chosen. A 4-legged setting gives the round cut diamonds a more square appearance, while a 6-legged setting leaves a more rounded impression.

The widest selection of round brilliant diamonds can be found it here at Gemistone Jewelers Online webshop.

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