Tennis Necklace FAQs – Because Every Cool Girl Deserves Diamonds

To know one is to love one. Yeah, we’re talking about tennis necklaces. A diamond tennis necklace (or bracelet) is a continuous strand of individually set diamonds, linked together in perfect harmony. A classic, must-have piece in any jewelry collection.

Once upon a time, tennis necklaces were reserved for black-tie events and red carpets. But now? They go with everything—from evening gowns to your favorite sweatshirt. (And honestly, we prefer them with sweatshirts.) The perfect way to elevate your everyday.

Our Tennis Collection is designed so you can customize every detail to create a timeless piece that’s uniquely yours. But before you commit, let’s break down the most frequently asked questions.

What’s the best diamond size for a tennis necklace?
There are no rules—only what aligns with your personal style, budget, and lifestyle. The best size? It’s whatever you want. General guidelines (aka our take):

• 3-4 cts → Dainty energy. Perfect for subtle, everyday sparkle.
• 5-7 cts → Effortlessly luxe. That rich-but-chill vibe. 
• 8-10+cts  → Main character energy. For when you want to be seen.

What’s the difference between lab-grown and natural diamonds?
Same sparkle, different origin.

• Lab diamonds → Identical to natural diamonds but ethically made and easier on your wallet.
• Natural diamonds → They’ve been vibing underground for millions of years.

Need more insight? Check out our Lab Created Diamonds blog for the full breakdown.

What’s the best length for a tennis necklace?
Forget judging by photos—everyone’s neck is different. What looks perfect on a model at 15” might sit differently on you.

How to find your ideal length:
✔ Grab a ribbon and ruler → Wrap the ribbon around your neck where you want the necklace to sit, then measure it.
✔ Already own a necklace you love? Measure that length and match it.

General sizing guide: 

• 14-16” → Snug at the collarbone. Perfect for layering.
• 17-18” → A little longer, effortlessly chic.
• 20”+ → Full-on drama.

16" is our best-selling length in all tennis necklaces. 

Can I wear my tennis necklace every day?
Hell yes. And with a sweatshirt? Even better. We do recommend removing it before bed or during intense workouts—because, you know, diamonds deserve a little care.

How do I keep my tennis necklace from flipping?
Good news—if your tennis necklace is well-made and the right size for your neck, it will naturally sit flat.
If it flips, it’s usually because:
❌ It’s too short for your neckline.
❌ It’s too delicate (tiny tennis necklaces don’t always have enough weight to lay flat).
❌ It wasn’t properly designed (but any seasoned fine jeweler knows what they’re doing).
At Diamonds + Sweatshirts, our smallest tennis necklace starts at 3 carats—anything less, and it wouldn’t meet our standards.

Is a tennis necklace worth the investment?
Absolutely. A classic forever piece that never goes out of style. Buy one today, and it’ll still be wearable 50+ years from now. And the best part? It makes everything you wear feel luxe—even a sweatshirt.

Do I need to baby my tennis necklace?
Yes, but let’s call it showing it love. It’s fine jewelry, not indestructible. Treat it with care, clasp it properly, don’t pull on it, and take it off for strenuous activities. Respect your diamonds, and they’ll last a lifetime (or three).

Ready to invest in your forever piece? Shop the Tennis Collection to create your dream piece. Got a question? Let us know. 
XX Amanda