What size diamond for a size 5.5 finger?
By HeyGema™ · Updated
In short
On a size 5.5 finger, a classic look is a round diamond of 0.42 to 1.42 carat (4.8 to 7.2 mm), which covers 30% to 44% of the finger's 16.1 mm width. Bolder looks start at 1.42 carat.
- 16.1 mmsize 5.5 ring width
- 0.42 to 1.42 ctclassic round
- 40%covered by 1 ct round
Diamond carat range for a size 5.5 finger
A size 5.5 finger is 16.1 mm wide at the ring (50.6 mm around). Here is the carat weight at which a diamond covers each share of that width. Pick the look you want and read across.
- Round
- Delicate: up to 0.42 ct
- Classic: 0.42 to 1.42 ct
- Bold: 1.42 to 3.36 ct
- Statement: 3.36 and up ct
- Oval
- Delicate: up to 0.68 ct
- Classic: 0.68 to 2.29 ct
- Bold: 2.29 to 5.42 ct
- Statement: 5.42 and up ct
- Cushion
- Delicate: up to 0.64 ct
- Classic: 0.64 to 2.17 ct
- Bold: 2.17 to 5.13 ct
- Statement: 5.13 and up ct
- Emerald cut
- Delicate: up to 0.9 ct
- Classic: 0.9 to 3.04 ct
- Bold: 3.04 to 7.21 ct
- Statement: 7.21 and up ct
- Princess
- Delicate: up to 0.68 ct
- Classic: 0.68 to 2.29 ct
- Bold: 2.29 to 5.42 ct
- Statement: 5.42 and up ct
- Pear
- Delicate: up to 0.68 ct
- Classic: 0.68 to 2.29 ct
- Bold: 2.29 to 5.42 ct
- Statement: 5.42 and up ct
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.
A 0.9 carat round on a size 5.5 finger
A 1.4 carat oval on a size 5.5 finger
Every carat weight on a size 5.5 finger
- 0.5 ct
- Round size: 5.1 mm
- Round covers: 32%
- Look: Classic
- Oval covers: 27%
- 0.75 ct
- Round size: 5.9 mm
- Round covers: 36%
- Look: Classic
- Oval covers: 31%
- 1 ct
- Round size: 6.5 mm
- Round covers: 40%
- Look: Classic
- Oval covers: 34%
- 1.5 ct
- Round size: 7.4 mm
- Round covers: 46%
- Look: Bold
- Oval covers: 39%
- 2 ct
- Round size: 8.1 mm
- Round covers: 50%
- Look: Bold
- Oval covers: 43%
- 2.5 ct
- Round size: 8.8 mm
- Round covers: 54%
- Look: Bold
- Oval covers: 46%
- 3 ct
- Round size: 9.3 mm
- Round covers: 58%
- Look: Bold
- Oval covers: 49%
- 4 ct
- Round size: 10.2 mm
- Round covers: 64%
- Look: Statement
- Oval covers: 54%
- 5 ct
- Round size: 11.0 mm
- Round covers: 69%
- Look: Statement
- Oval covers: 58%
If your ring size is between sizes
Ring sizes move in steps of half a size. The widths here are for the inside of the ring at your size. A finger is wider at the knuckle than at the base, so a ring that has to pass the knuckle is sometimes sized up. Neighboring sizes: size 4.5, size 5, size 6.