1 Carat Diamond (Round, 6.5×6.5×3.92mm)

Diamond Size Details
Actual size
Shape: Round
Weight: 1 carat
Price: check here »
L×W×D: 6.5 × 6.5 × 3.92 mm
Depth: 60.3% → OK
L/W ratio: 1
Face-up size: ✓ Adequate
This diamond LOOKS its weight!

This 1 carat Round has a face-up area of approx. 33.18 mm², which falls within the normal range for 1ct Rounds. A face-up area is the area of the girdle plane and tells you how big the stone looks when viewed from the top (as set in a ring). Face-up size of this diamond is as you would expect of a 1ct Round.

Actual Size of a 1 Carat Diamond

Here you can see how big 1 carat diamond (6.5×6.5×3.92mm) actually is and how it would appear on a ring and finger. Adjust the ring and finger size to get an idea of how it would look on your finger.

Ring:
Skin tone:
Ring width 3.1 mm
Ring diameter 18.8 mm
Finger length 74 mm
Your settings
RingPlatinum
Skin toneMedium
Ring diameter18.8 mm
Ring width3.1 mm
Finger length74 mm

Buying Guide: Round cut

Round brilliants are very good at masking inclusions and color, which means you can go quite low in terms of clarity and color grades without sacrificing the appearance. Cut, on the other hand, which determines the fire and brilliance should always be of the highest possible grade (Excellent for GIA or Ideal for AGS).

What is the price of a 1 carat diamond?

It depends. The value of a diamond is determined by a combination of its unique characteristics - the famous 4Cs (Cut, Color, Clarity, and Carat). It can get complicated, but you can quickly check the price range for Round diamonds of around 1 carats.

Best Value For Money Recommendation

  • Color: J if platinum/white gold solitaire, K if yellow gold solitaire setting
  • Excellent or Ideal cut
  • SI2 clarity
  • At least Good polish/symmetry
  • GIA or AGS report

Additional Diamond Info

ShapeRound
Also known asRound Brilliant
Cutting styleBrilliant
Facets58 (57 if no culet)
Signature shape characteristicsCircular outline, most brilliant of all diamond cuts
Carat weight1 ct
Gram weight0.2 g (0.0071 ounces)
Points100 pts
Measurements (L×W×D)6.5 × 6.5 × 3.92 mm
Length6.5 mm
Width6.5 mm
Depth3.92 mm
Average diameter6.5 mm
Depth percentage60.3%
Recommended depth percentage58 – 62.6%
Length-to-width ratio1
Typical length-to-width ratiobetween 1.00 and 1.02
Face-up area33.18 mm²
Face-up area per carat33.18 mm²/ct
Face-up sizeNormal for 1 carat Round
Volume-