image description ROUND

The round diamond is the most popular and traditional diamond shape. The round cut optimizes the properties of the diamond rough to create the maximum potential light refraction.

A round brilliant stone will have 58 facets and is better at hiding imperfections in color and clarity than fancy cut diamonds. Round stones cost the most per carat because the manufacturing of these stones requires more diamond rough and because demand for round diamonds is very high.

The CUT of a round diamond will have the greatest impact on the brilliance of the stone. HYSTR recommends that customers choose round diamonds with Ideal, Excellent or Very Good cuts. Because round diamonds are better at hiding color and clarity imperfections, buyers can often find the best value stone by choosing a round diamond that is SI clarity and H-I color.

The following tables provide additional guidance for understanding the cut, color, and clarity of round stones.

OUR GIA GEMOLOGIST RECOMMENDS

The cut of a round diamond is the factor that most impacts the sparkle and appearance of the stone. Our gemologist recommends that clients not compromise on the cut and purchase a stone with an Ideal, Excellent, or Very Good cut

  • image description IDEAL
  • image description EXCELLENT
  • image description VERY GOOD

ROUND DIAMOND CUT GUIDE

EXCELLENT VERY GOOD GOOD FAIR / POOR
Table % 52.5 - 58 51.5 - 52.4
or
58.1 - 60.5
50.5 - 51.4
or
60.6 - 64
< 50.5
Depth % 59.3 - 62.1 58 - 59.2
or
62.2 - 63.5
57 - 57.9
or
63.6 - 64
< 57
or
> 64
Crown Angle 32.7 - 36.3 31.2 - 32.6
or
36.4 - 37.8
30.2 - 31.1
or
37.9 - 39.3
< 30.2
or
> 39.3
Pavilion Depth 42.2 - 43.8 42 - 42.1
or
43.8 - 44
41 - 41.9
or
44.1 - 45.5
< 39.5
or
> 47
Girdle Thin, Medium, or Slightly Thick Thin, Medium, or Slightly Thick Very Thin to Thick Ex Thin to Ex Thick
Culet None Very Small Small Medium

OUR GIA GEMOLOGIST RECOMMENDS

Round diamonds are more forgiving of small clarity flaws. A diamond that is a lower clarity, but still 100% eye-clean, represents the best value.

Our gemologist recommends that clients purchase a stone with VS 2-SI 2 clarity. The inclusions in these stones will only be visible under magnification.

  • image description VS2
  • image description SI1
  • image description SI2 (GIA only)

ROUND DIAMOND CLARITY GUIDE

EXCELLENT VERY GOOD GOOD
(Eye Clean)
FAIR / POOR
(Not Eye Clean)
< .50 Carats FL - VS2 SI 1 SI 2 > I1
.51 - 1.20 Carats FL - VS 2 SI 1 SI 2 > I1
1.21 - 2.00 Carats FL - VVS 2 VS1 - SI 1 SI 2 > I1
> 2.00 Carats FL - VVS 2 VS1 - SI 1 SI 1 SI 2

OUR GIA GEMOLOGIST RECOMMENDS

Round diamonds show less visible color than many other shapes. A diamond that is a lower color, but still appears white, represents the best value.

Our gemologist recommends that clients purchase a stone with 11 -1 color. The color in these stones will be difficult to detect with an untrained eye.

  • image description H
  • image description I

ROUND DIAMOND COLOR GUIDE

EXCELLENT VERY GOOD GOOD
(Looks White)
FAIR / POOR
(Color is Eye-Visible)
< .50 Carats D - G H - I J K +
.51 - 1.20 Carats D - G H I > I
1.21 - 2.00 Carats D - F G - H I > I
> 2.00 Carats D - F G - H I > I
Fluorescence None Faint / Medium Medium Strong / Very Strong
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