What does a 1.5 carat diamond look like on a finger?

By HeyGema™ · Updated

In short

A round 1.5 carat diamond is 7.4 mm across and covers 50% of the width of a size 4 finger, 45% of a size 6 and 41% of a size 8. On a size 6 that is a bold look. An oval of the same weight is 9.2 x 6.3 mm.

Diamond size on a finger

Skin tone
7.4 mm
7.4 mm stone on a 16.5 mm finger: it covers 45% of the width

1.5 ct diamond round: 7.4 mm, 45% of a size 6 finger.

The stone sits along the finger, so its width is what shows against the finger. Drawn to scale from the chart on this page.

1.5 carat oval on a size 6 finger

6.3 mm
6.3 mm stone on a 16.5 mm finger: it covers 38% of the widthA 1.5 carat oval, 9.2 x 6.3 mm.

1.5 carat emerald cut on a size 6 finger

5.7 mm
5.7 mm stone on a 16.5 mm finger: it covers 35% of the widthA 1.5 carat emerald cut, 8.0 x 5.7 mm.

1.5 carat diamond on a finger, by ring size and shape

The share of the finger's width the stone covers. Bold means 45% to 59%; statement means 60% and more.

4
Finger width: 14.9 mm
Round: 50%
Oval: 42%
Cushion: 43%
Emerald cut: 38%
Princess: 42%
Pear: 42%
5
Finger width: 15.7 mm
Round: 47%
Oval: 40%
Cushion: 41%
Emerald cut: 36%
Princess: 40%
Pear: 40%
6
Finger width: 16.5 mm
Round: 45%
Oval: 38%
Cushion: 39%
Emerald cut: 35%
Princess: 38%
Pear: 38%
7
Finger width: 17.3 mm
Round: 43%
Oval: 36%
Cushion: 37%
Emerald cut: 33%
Princess: 36%
Pear: 36%
8
Finger width: 18.1 mm
Round: 41%
Oval: 35%
Cushion: 35%
Emerald cut: 32%
Princess: 35%
Pear: 35%
9
Finger width: 18.9 mm
Round: 39%
Oval: 33%
Cushion: 34%
Emerald cut: 30%
Princess: 33%
Pear: 33%

The four looks are our own bands for the share of the finger's width a stone covers: delicate under 30% of the finger's width; classic 30% to 44%; bold 45% to 59%; statement 60% and more. They are a way to read the numbers, not a rule.

1.5 carat in millimeters

A round 1.5 carat diamond is 7.4 mm (0.29 inches) across. For every shape see the 1.5 carat diamond size chart, or open one shape: round, oval, cushion, emerald cut.

Questions

A round 1.5 carat is 7.4 mm across: 45% of the width of a size 6 finger, a bold look by our bands. It looks larger on a narrower finger (50% of a size 4) and smaller on a wider one (41% of a size 8).
On a size 4 finger (14.9 mm wide) a round 1.5 carat covers 50% of the width. On a size 8 it covers 41%.
A 1.5 carat oval is 9.2 x 6.3 mm. Its width, 6.3 mm, covers 38% of a size 6 finger, and its length runs along the finger.

More size charts