Which ring does the job, the size to order, and the gold and diamond that suit her hand
Decide what the ring is for before you look at stones. An engagement ring is built around one center stone, and a band is worn beside it or alone. Have a ring from her finger measured before you order, since a resized ring is final sale. Take 14K gold for a ring she never takes off. Most buyers here chose lab-grown diamonds, real diamond on the same grading scale.
Find your ring size in a minute
Size 7: 17.3 mm across, 54.4 mm around. It is the most bought size here: 20 percent of the women's diamond rings sold here in the past year with a size recorded. 385 of the 474 rings here list size 7.
Between two sizes? Take the one that passes the knuckle and sits snug below it. A wide band, 8 mm and up, fits tighter, so go up a half size. Measure at the end of the day, at room temperature.
Text this size to the desk
The women's ring size chart, 4 to 16
| US size | Inside diameter | Around the finger | Rings here listing it |
|---|
| 4 | 14.9 mm | 46.8 mm | 123 |
|---|
| 4.5 | 15.3 mm | 48.0 mm | 140 |
|---|
| 5 | 15.7 mm | 49.3 mm | 360 |
|---|
| 5.5 | 16.1 mm | 50.6 mm | 357 |
|---|
| 6 | 16.5 mm | 51.9 mm | 391 |
|---|
| 6.5 | 16.9 mm | 53.1 mm | 389 |
|---|
| 7 | 17.3 mm | 54.4 mm | 385 |
|---|
| 7.5 | 17.7 mm | 55.7 mm | 355 |
|---|
| 8 | 18.1 mm | 57.0 mm | 347 |
|---|
| 8.5 | 18.5 mm | 58.2 mm | 257 |
|---|
| 9 | 18.9 mm | 59.5 mm | 241 |
|---|
| 9.5 | 19.4 mm | 60.8 mm | 67 |
|---|
| 10 | 19.8 mm | 62.1 mm | 65 |
|---|
| 10.5 | 20.2 mm | 63.3 mm | 20 |
|---|
| 11 | 20.6 mm | 64.6 mm | 19 |
|---|
| 11.5 | 21.0 mm | 65.9 mm | 12 |
|---|
| 12 | 21.4 mm | 67.2 mm | 11 |
|---|
| 12.5 | 21.8 mm | 68.5 mm | 2 |
|---|
| 13 | 22.2 mm | 69.7 mm | 1 |
|---|
| 13.5 | 22.6 mm | 71.0 mm | 1 |
|---|
| 14 | 23.0 mm | 72.3 mm | 0 |
|---|
| 14.5 | 23.4 mm | 73.6 mm | 0 |
|---|
| 15 | 23.8 mm | 74.8 mm | 0 |
|---|
| 15.5 | 24.2 mm | 76.1 mm | 0 |
|---|
| 16 | 24.6 mm | 77.4 mm | 0 |
|---|
A screen measurement checked with a quarter is a guide, good to about a half size; the desk sizes you right the first time. "Rings here listing it" counts the live listings on October 2, 2026; the sales lines are women's diamond rings sold here in the year to September 26, 2026, with a size recorded.
Kinds: engagement rings, wedding bands and eternity bands
Start with the ring's job. An engagement ring is built around one center stone and takes about seven in ten of the sales here. The leader is a lab-grown marquise. Pick the center on the women's engagement rings page. A wedding band is worn next to it, and an eternity band carries stones the whole way round. A hidden halo sets small diamonds beneath the center. A diamond ring with no center job, a cocktail ring or a heart, is for her own hand, and a gemstone ring adds sapphire or ruby.
Metal: 14K, 18K or platinum, and white, yellow or rose gold
For every day, choose 14K. It takes knocks better than 18K, and most buyers here took it. 18K is three parts gold in four, deeper in color and quicker to mark. Platinum is white right through, and the same ring weighs about six in ten more than in 14K. Most listings offer white, yellow or rose, so match what she wears. White gold carries a rhodium coat that thins in a year or two and is renewed. If nickel bothers her skin, ask us about the white alloy.
Diamonds: lab-grown or natural, center carat and total carat weight
Both are real diamonds, graded on one scale. Nearly four in five of the sales here went lab-grown. Natural is the scarcer stone. The center carat is the one big stone. The total carat weight adds every stone, so a two carat total can be many small ones. Only four listings never name the origin, so ask us about those.
Size: what ring size women wear, half sizes and resizing
Order her size from a ring she wears on that finger, measured by a jeweler or with this page's sizer. Size 7 went out most here, and 6 through 7 took nearly half. Three rings in ten sold in a half size, so do not round. Go up a half for a wide band. The grid has no size filter, so check each listing. A plain shank resizes the most, a channel-set ring only a little, and an eternity band usually not at all.
Buying: stacking, custom work, shipping and returns
Stack the wedding band first, nearest the palm, with the engagement ring outside it. An eternity band beside a center stone should sit low so the diamonds do not grind. Our bench on 47th Street has made rings since 2004. Ask for another stone or karat, and we quote the work and the wait. Most stock rings go out tracked within two to five business days. A ring kept unworn and unaltered has fourteen calendar days from its arrival to come back. Clear it with us before it goes in the box, then use our return label. We deduct the label and the five percent restocking fee from the refund. Reach the desk through the live chat; 212-872-9692 takes a call or a text, with a person there from 10 AM ET.
Questions we get in the store
What ring size do most women wear, and how do I find hers quietly?
Size 7 sold most here, about one sized ring in five. Quietly borrow one she wears on that finger and have a jeweler or the sizer on this page read it, or ask a friend. Where the setting allows, we resize later, and then it is final.
Lab-grown or natural: which diamond should her ring have?
Lab-grown, the choice of most buyers here. Nearly four in five of the sales here went that way. Natural suits a buyer who wants the scarcer, mined stone, and both grade on one scale. Ask us when a listing names neither.
Is 14K, 18K or platinum best for a diamond ring worn daily?
14K is best for daily wear. It is the harder gold, so the prongs hold, and most rings sold here were 14K. 18K gives a richer yellow but marks sooner. Platinum stays white without plating and weighs noticeably more on the finger.
More questions we get
What is the difference between an engagement ring and a diamond ring?
An engagement ring is built to show one center stone. A diamond ring without that job is a band, a cocktail ring or a heart, worn for her own look. For the center stone's shape and grades, see the engagement rings guide.
Can a diamond ring be resized after I buy it?
Often, but it depends on the setting, so ask us before you order. A plain shank moves the most, while a channel-set ring moves only a little. An eternity band usually cannot be resized at all, and any ring once resized is final sale.
Should she wear an eternity band or a wedding band?
Choose an eternity band when her size is certain and she wants diamonds all the way round. Choose a wedding band when the size may change, because it keeps bare metal a jeweler can cut. The wedding bands here are among the lightest rings.
Which gold color needs upkeep, white, yellow or rose?
White gold is the one that needs care. Its rhodium coat wears thin in a year or two and gets renewed, while yellow and rose keep their own color. Most listings offer all three, so match the gold she already wears.
Can I return a diamond ring, and how soon does it ship?
Yes, for fourteen days after it lands, unworn and unaltered. Settle it on the live chat, then ship it on our return label. The label and five percent for restocking leave your refund. Resized or made-to-order rings are final. Stock rings normally ship in two to five business days.