Moissanite Tennis Necklace Length Guide
For most people, the best moissanite tennis necklace length is 16 to 18 inches. A 16-inch necklace sits right at the collarbone for a classic, close fit, while 18 inches drapes just below it and flatters almost every neckline. Want a bolder, layer-friendly drop? Step up to 20 inches or longer. The right length depends on three things: your height, your usual necklines, and how high or low you like a necklace to sit. This guide breaks down every standard size with real measurements so you can order your moissanite tennis necklace with confidence the first time.
What are the standard moissanite tennis necklace lengths?
Tennis necklaces are sold in a handful of standard sizes. At Rokshok, our lines run from about 14 inches up to 22 inches, mirroring the most popular lengths in fine jewelry:
14–15 inches (choker / 35–38cm): Sits high on the neck, just above the collarbone. A modern, close fit that shines on its own or as the top layer in a stack.
16 inches (40–41cm): The classic. Rests right at the base of the neck along the collarbone — the most popular moissanite tennis necklace length and an easy everyday choice.
18 inches (45–46cm): Known as princess length. Falls just below the collarbone, hits flatteringly on most chests, and pairs beautifully with crew necks and V-necks alike.
20 inches (50–51cm): A longer, statement drop that lands a couple of inches below the collarbone. Great for layering or evening wear.
22 inches (55–56cm): The boldest option, ideal over higher necklines or for taller frames who want the line to sit lower on the chest.
Which moissanite tennis necklace length is right for you?
Two quick factors narrow it down fast: your height and your neckline.
By height. If you are under 5'4", a 16-inch necklace gives a balanced, proportional look, and even a 20-inch will still sit flatteringly high. If you are 5'4" to 5'8", 16 to 18 inches is the comfortable everyday zone. Taller than 5'8"? An 18- or 20-inch length keeps the necklace from sitting too tight.
By neckline. Higher necklines — crew necks, turtlenecks, off-shoulder tops — look best with shorter 14- to 16-inch necklaces that stay visible above the fabric. Open and deeper necklines — V-necks, scoop necks, button-downs — are made for 18- to 20-inch lengths that follow the line of the neckline.
By how you wear it. If this is your one go-to piece, a 16- or 18-inch moissanite tennis necklace length covers the most outfits. If you love to layer, choose two lengths a few inches apart — for example a 16-inch tennis line over an 18- or 20-inch chain — so each piece reads clearly.
16 vs 18 inch: which classic length wins?
These two sizes account for most tennis necklace purchases, so it is worth comparing them directly. A 16-inch necklace hugs the base of the neck. It looks polished, never gets in the way, and is the safest pick if you want that timeless, sits-at-the-collarbone look. An 18-inch necklace gives a little more breathing room, drops just below the collarbone, and tends to be the more forgiving choice across different body types and necklines. If you are between the two, size up to 18 inches — it is easier to wear a slightly longer necklace higher (it simply rests a touch lower) than to make a 16-inch feel roomy.
How to measure for the right moissanite tennis necklace length
You do not need special tools. Take a piece of string or a soft measuring tape and wrap it around your neck where you want the necklace to sit. Mark the spot, lay the string flat against a ruler, and that measurement is your ideal length. If you only have a necklace you already own and love, measure it end to end (including the clasp) and match that number. When you are between sizes, round up — a slightly longer necklace is far more comfortable than one that sits too tight against the throat.
Does stone size change the length you should choose?
Slightly. A chunkier 4mm or 6.5mm line has more visual weight, so a shorter 16-inch length can feel bold and substantial. A delicate 2.5mm to 3mm line reads softer, so many people size up to 18 inches to give the sparkle a little more room to drape. Whatever stone size you choose, every Rokshok tennis necklace uses the same brilliant lab-grown moissanite — silicon carbide rated Mohs 9.25, with VVS clarity and a refractive index that outshines diamond and passes a diamond tester. Browse sizes and stone widths together on our moissanite tennis necklace collection, and once you have your length sorted, our moissanite tennis necklace cost guide shows how size and length shape the price.
Frequently asked questions
What is the best moissanite tennis necklace length for everyday wear?
For everyday wear, 16 to 18 inches is ideal. A 16-inch necklace sits at the collarbone for a classic look, while 18 inches drops just below it and suits the widest range of necklines and outfits.
Is a 16 or 18 inch tennis necklace better?
Both are popular. Choose 16 inches for a close, classic fit at the base of the neck, or 18 inches for a slightly lower, more forgiving drape. If you are unsure, size up to 18 inches.
What length tennis necklace is best for layering?
Pick two lengths at least 2 to 4 inches apart — for example a 16-inch tennis line worn over an 18- or 20-inch chain — so each piece sits at its own level and stays visible.
How do I measure my neck for a tennis necklace?
Wrap a string or soft tape measure around your neck where you want the necklace to rest, mark the spot, and measure it against a ruler. That number is your ideal length; round up if you are between sizes.
Found your fit? Shop every size from 14 to 22 inches in the Rokshok moissanite tennis necklace collection and get diamond-level sparkle without the diamond markup. Pair it with matching moissanite earrings to complete the set.
