A necklace sits right in the frame of your face and changes with every neckline you wear, so it rewards a little planning. Length and style do most of the work: they decide where the diamonds land, how the piece layers, and whether it feels delicate or like a statement. This guide covers both, with a length chart, plus metals and care.
What is the best necklace length?
For one necklace that works with almost everything, choose 18 inches (46 cm). It sits at the collarbone, suits most necklines and is the standard length for pendants. Choose 16 inches (41 cm) for a closer fit at the base of the neck, and 20 inches (51 cm) or longer to sit over higher necklines or layer below a shorter piece.
Necklace length chart
Placement varies with height, build and neck size, so treat these as a guide. Measurements are for women's necklaces.
| Length (inches) | Length (cm) | Name | Where it sits | Best for |
|---|---|---|---|---|
| 14 | 36 | Choker | Snug at the base of the neck | Open necklines, strapless |
| 16 | 41 | Choker / short | Just above the collarbone | Tennis necklaces, petite builds |
| 18 | 46 | Princess | On the collarbone | Pendants, everyday wear; the most popular length |
| 20 | 51 | Matinee | A few inches below the collarbone | Crew necks, layering under an 18" |
| 22–24 | 56–61 | Matinee | Upper chest | High necklines, a longer line |
| 28–36 | 71–91 | Opera | Center of the chest or lower | Dramatic layering; can be doubled |
To see what suits you, lay a piece of string at each length around your neck and look in a mirror. Length options differ by style, so check each product page.
What is the most popular necklace length?
18 inches is the most popular necklace length for women. It sits at the collarbone, frames a pendant well and works with most necklines. 16 inches is the next most common, especially for tennis necklaces that you want to sit close to the neck.
What length should a tennis necklace be?
Most tennis necklaces are 16 to 18 inches. 16 inches sits close at the base of the neck for a classic, choker-like line; 17 to 18 inches drapes slightly lower and is easier to wear with more necklines. Because every link carries a diamond, a longer tennis necklace also means more stones and a higher total carat weight.
The main necklace styles
Tennis necklaces
A continuous line of diamonds set closely together, so the whole chain sparkles. This is the style to choose when you want presence without a pendant. Double-row versions, like our Elan Double Row tennis necklace, add width and a more substantial look. Browse the tennis necklace collection.
Pendants and solitaires
A single diamond or gemstone suspended on a fine chain. Pendants are the easiest everyday necklace, and the stone's shape sets the mood: round is classic, pear and marquise are elongated and graceful, and emerald-cut is clean and architectural. Compare shapes in our diamond shape guide.
Halo and drop necklaces
A center stone ringed by smaller diamonds, or a stone that hangs from a V-shaped or station chain. A piece like our Solenne halo drop necklace draws the eye to one concentrated point of brilliance, and a V-shaped chain follows the neckline.
Station and cluster necklaces
Diamonds or small clusters spaced along the chain. They're lighter and more delicate than tennis necklaces, and a good bridge between a pendant and a full line of stones.
See everything together in our lab-grown diamond necklaces collection.
How do you match a necklace to a neckline?
- V-neck: a pendant or a V-shaped necklace that echoes the line.
- Crew or high neck: a longer chain (20 inches or more) that sits on the fabric, or a short choker above it.
- Scoop or square neckline: a tennis necklace or pendant at 16 to 18 inches follows the curve.
- Strapless or off-shoulder: a tennis or statement necklace, since there's nothing to compete with it.
How do you layer necklaces?
Space layered necklaces about 2 inches (5 cm) apart so each one stays visible, for example 16, 18 and 20 inches. Vary the styles: a short tennis necklace with a longer pendant is a reliable pairing. Keep the metal consistent, or mix deliberately rather than by accident.
Stone size and total carat weight
For pendants, the focus is the size of the center stone. For tennis and station necklaces, listings give a total carat weight across all the diamonds, which combines with chain length and stone count to set how the piece looks. Heavier isn't always better: a long necklace of small stones can carry the same total weight as a short necklace of larger ones, but looks quite different. Check the stone dimensions if the look matters to you.
Metals and chains
Our necklaces are offered in yellow, rose and white gold from 9k to 18k, plus platinum and silver, depending on the style. For daily wear, 14k gold is a common balance of durability and gold content. Platinum is hypoallergenic and long-wearing but heavier. Compare the options in our metal guide. A secure clasp, with a safety latch on heavier pieces, is worth confirming.
Care
- Clean with warm soapy water and a soft brush, then rinse and dry. See how to clean lab-grown diamond jewelry.
- Fasten necklaces before storing them, and keep each one separate to prevent tangles and scratches.
- Put your necklace on after perfume and hairspray, and remove it before swimming or sleeping.
Frequently asked questions
What length diamond necklace is most popular?
16 to 18 inches is the most common range. 18 inches sits at the collarbone and works for most people and most necklines.
Is an 18-inch necklace too long?
No. For most women, an 18-inch necklace sits on or just below the collarbone, which is the most versatile position. On a petite frame or a narrow neck it may fall slightly lower.
What is the difference between a tennis necklace and a pendant?
A tennis necklace is a continuous line of diamonds around the neck, while a pendant has a single diamond or a cluster suspended on a chain. Tennis necklaces make a bigger statement; pendants are more everyday.
Can I wear a diamond necklace every day?
Yes. A pendant on a sturdy chain is an easy daily piece. Keep the clasp and settings in good order and avoid wearing it in the shower or while exercising.
How do I choose a necklace as a gift?
A pendant at 16 to 18 inches in the metal the person already wears is the safest choice. If you aren't sure of the metal, look at the jewelry they wear most often and match it.
Are lab-grown diamond necklaces real diamonds?
They are diamonds, not imitations. The stones have the same chemical composition and crystal structure as mined diamonds; only their origin differs. See our complete guide to lab-grown diamonds.
Ready to choose?
Browse our diamond necklaces and tennis necklaces, or request a particular length or metal through our custom design service.
