How big are 2 carat diamond stud earrings?
By HeyGema™ · Updated
In short
2 carat diamond stud earrings (ctw) are two stones of 1 carat. A round stone of 1 carat is about 6.5 mm across, a princess 5.5 x 5.5 mm and a cushion 5.6 x 5.6 mm.
- 1 cteach stone
- 6.5 mmround, across
- 0.25 inthe same in inches
Carat to mm calculator
About 6.5 x 6.5 mm
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
Round
6.5 mm
Princess
5.5 x 5.5 mm
Cushion
5.6 x 5.6 mm
Oval
8.0 x 5.5 mm
Pear
8.5 x 5.5 mm
Heart
6.5 x 6.5 mm
= 2 mm in every picture above
2 carat total weight stud earrings in mm
A pair of 2 ctw diamond studs has two stones of 1 carat each. A round stone of that weight measures about 6.5 mm (0.25 in) across the face. Each weighs 0.20 grams.
- Round
- Size of each stone: 6.5 mm
- In inches: 0.25 in
- Princess
- Size of each stone: 5.5 x 5.5 mm
- In inches: 0.22 x 0.22 in
- Cushion
- Size of each stone: 5.6 x 5.6 mm
- In inches: 0.22 x 0.22 in
- Oval
- Size of each stone: 8.0 x 5.5 mm
- In inches: 0.31 x 0.22 in
- Pear
- Size of each stone: 8.5 x 5.5 mm
- In inches: 0.33 x 0.22 in
- Heart
- Size of each stone: 6.5 x 6.5 mm
- In inches: 0.26 x 0.26 in
2 ctw studs next to a coin
1 ct diamond
6.5 mm
US dime
17.9 mm
US nickel
21.2 mm
US quarter
24.3 mm
Nearby stud sizes
- 1.5 ctw
- Each stone: 0.75 ct
- Round size: 5.9 mm
- 2 ctw (this page)
- Each stone: 1 ct
- Round size: 6.5 mm
- 2.5 ctw
- Each stone: 1.25 ct
- Round size: 6.9 mm
How to compare studs from different sellers
Ask for the size in mm of each stone along with the total weight. Two pairs of the same ctw can differ by a few tenths of a millimeter because of the cut. See the stud earring size chart for every weight, or how to measure a diamond you already own.
Questions
Each round stone of a 2 ctw pair is about 6.5 mm across (0.25 in).
Two. ctw is the combined weight of the pair, so each stone is 1 carat.
Each stone is 6.5 mm across, 36% of the width of a US dime (17.91 mm). Round 1 carat stones are the same size whether they sit in a ring or an earring.
1 carat each.