Diamond Stud Earring Size Guide: See Every Carat On Your Ear
Diamond Stud Earring Size Visualizer: See Any Carat on Your Ear
See exactly how big a lab-grown diamond stud looks on your ear. Slide from 0.1 to 3 carats and the diamond scales to its true millimetre width against a real ear, so you know what 0.5ct, 1ct or 2ct studs actually look like before you buy.
Drag the two dots onto the left and right edges of your earlobe. Then drag the diamond onto your ear and enter the real width between the dots.
Carat weight — 1.00 ct
Stone width6.4 mm
About the size ofa green pea
Dot A: 0%, 0% · Dot B: 0%, 0% · Diamond: 0%, 0%
Each earring is shown as the face-up round diamond, seen straight on. Actual appearance can vary slightly with setting style.
Shop lab-grown diamond stud earringsHow big is each carat? Diamond stud earring mm size chart
| Carat (per earring) | Diameter (mm) | Looks like |
|---|---|---|
| 0.1 | 3.0 | a sesame seed |
| 0.25 | 4.1 | a mung bean |
| 0.5 | 5.1 | a red bean |
| 0.75 | 5.8 | a corn kernel |
| 1.0 | 6.4 | a green pea |
| 1.5 | 7.4 | a blueberry |
| 2.0 | 8.1 | a chickpea |
| 3.0 | 9.3 | a small grape |
Sizes follow independent IGI grading standards. Verify a report. IGI certificates are issued and emailed before dispatch for stones 1ct and above. Studs under 1ct are graded in-house against our MISI™ standard.
Diamond stud earring size — frequently asked questions
How big is a 1 carat diamond stud earring?
A 1 carat round lab-grown diamond stud measures about 6.4 mm across per earring — roughly the size of a green pea. Worn as a pair this reads as a clear, noticeable size on most ears without looking heavy.
What carat is most popular for stud earrings?
Most MadisonDia clients choose 1 carat or above per earring, since smaller stones can look underwhelming once set. Use the slider above to compare sizes directly.
Does carat weight mean the same size for both earrings?
MadisonDia stud earrings are sold as matched pairs, so both stones are matched for carat weight, color, and clarity to appear identical side by side.
Do MadisonDia stud earrings come with a certificate?
Every MadisonDia diamond is D color, VVS clarity, 3EX cut, graded in-house against our MISI™ standard. We issue an individual IGI certificate, emailed before dispatch, for earrings 1 carat and above.