Diamond Inhouse

Round Shape Diamonds: Most loved shape!!

round shape diamonds

Every shape has its own features and uniqueness

As we know now there are many different shapes that come in diamonds. If you haven’t read it yet, you can click here fancy shapes intro.

Round shape diamonds are one of the most popular and loved diamond shapes in the world. It is believed that the Round cut shape diamond is 50% of all the diamonds that are sold in the world. Round cut shape diamonds are popular for their brilliance cut and sparkling nature.

The perfect brilliant-cut diamond sparkles the most as compared to all other shapes of diamonds. As time goes, this shape has made its name in the jewelry-making business as they are used in engagement rings, bangles, earrings, and other jewelry as well.

History of Round shape diamonds

There were many cuts that were introduced in the 16th century one of which is a rose cut. It is believed that the round-cut diamond shape came in the 17th century when diamond manufacturers started using some more reliable cutting patterns. Later the Old mine and Old European cut, a series of transformations in the diamond industry, came into existence in the 18th century.

The first Brilliant round cut was created in the year 1919 by Marcel Tolkowsky, a gemmologist, who with his mathematics skills used some formula for making the diamond in such a way that gives maximum sparkle and brilliance. It was him who explained about the state of the cut of diamond, that is deep cut or shallow cut.

What are the reasons for round shape diamond popularity?

Round cut diamonds have made a reputation of a unique, loved, and one of the most purchased shapes of all time. So, here are the reasons for the round cut shape diamond:

  1. Sparkle and brilliance: Sparkle and brilliance are the two important factors while anyone buying or purchasing diamonds. The sparkle of any diamond depends on the diamond’s brilliance. The Ideal Round cut shape will reflect the maximum sparkle of any other shape of the diamonds. For example, A 2 carat Ideal round shape diamond piece will create a quality of eye-catching with its brilliance, shine, and sparkle feature.
  2. Classic: The Round cut diamonds have 58 facets which help the light to travel and make the diamond sparkle. The diamond manufacturers have developed the technique of making the ideal round-cut diamond. These diamond shapes provide a classic look with their gorgeous shining appearance.
  3. Settings: The Round cut shape diamond can give a classic to modern style to any design of jewelry. When we talk about the engagement rings, there are many different settings that can be used with the Round cut diamond shape.
  4. Easy: These diamonds are loved and are purchased by diamond lovers in the world. So, easy selling and purchasing of these kinds of diamonds as compared to other shapes of diamonds. There will always be demands of the round cut shape diamond.
  5. Generations: The making and look of the round-cut diamond are so stylish and elegant, which makes it live in the family for generations. 

If you’re are interested in knowing the different settings of engagement rings, you can Browse here.

Difference between the brilliant-cut diamond vs Old European cut

The Brilliant cut diamond is the type of cut where there are many facets are created to reflect the proper light from the diamond whereas the old European cut has the same type of arrangement with the facets of the diamond. Both types of diamond cut can have 57 or 58 facets. The Brilliance as the name suggests are known for their brilliant and sparkle light whereas the old European cut will provide warmer and deeper effects in its sparkling feature. The main difference is the cutting and the symmetry of the diamond. As the old European cut was having a small table, but a big crown with a deep or shallow-cut which is much thicker than the modern or brilliant-cut diamond and which gives the vintage look to the Old European cut diamond.

How are Round cut shape diamonds are graded?

There are many different laboratories like GIA, IGI, etc. that provide diamond certificates and have different measuring criteria. They include the percentage of the table, the angle of the crown and pavilion, culet size, depth, polish, the thickness of the girdle, symmetry, and many others.

If you want to understand the 4Cs of the diamonds, you can browse here in buying guide.

The table down below shows the different symmetry percentages with the different categories.

Table %53 – 5852 – 53
58 – 60
61 – 64
65 – 69
< 50
> 69
Depth %59 – 62.358 – 58.9
62.4 – 63.5
57.5 – 57.9
63.6 – 64.1
56.5 – 57.4
64.2 – 65
< 56.5
> 65
Crown Angle34 – 34.932.1 – 33.9
35 – 35.9
30.1 – 32
36 – 37.9
29 – 30
38 – 40.5
< 29
> 40.5
Pavilion Depth42.8 – 43.242 – 42.7
43.3 – 43.9
41 – 41.9
44 – 45.5
39 – 40.9
45.6 – 48
< 39
> 48
Sl. Thick
Very Thin
Sl. Thick
Very Thin
Very Thin
Very Thick
Ex. Thin
Ex. Thick
CuletNoneVery SmallSmallMedium> Medium
L/W Ratio1.00 – 1.011.02> 1.02


If you are looking for a diamond with remarkable brilliance and unique sparkle then you should select the Round cut shape diamond. It might be costlier than all the other diamond shapes, but it is worth it. To ensure the best and quick purchasing tick you can understand the buying guides and the 4C’s of the diamond i.e., Cut, Color, Clarity, and Carat.

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