Ever fallen in love with a necklace online, only to realise it sits completely differently than you imagined? You’re not alone — necklace length can make all the difference between a piece that feels “just right” and one that spends more time in your jewellery box than around your neck.
At Big Blue by Roland St John, most of our ocean-inspired necklaces are available in 16", 18", and 20" chain lengths. To make sure you pick the fit that flatters your style (or your loved one’s), we’ve created this simple guide to help you choose with confidence.
Necklace Lengths Explained
Here’s where the most common lengths typically fall:
- 16” – sits high on the collarbone, almost like a choker.
- 18” – falls just below the collarbone, the most common and versatile choice.
- 20” – sits a little lower, offering extra space for pendants.
💡 Tip: Neck length and body type affect the look, and necklaces tend to sit a little differently on men vs. women (as shown in the guide above). For a more detailed guide to standard necklace lengths and their fit, check out Jewelers of America
Choosing Based on Your Style & Neckline
Your personal style and outfit choices make a big difference in which length works best.
- 16” chains – Perfect for scoop or V-neck tops, or for a minimalist, close-to-the-neck look.
- 18” chains – The classic, go-with-anything length. Works beautifully with dresses, t-shirts, and everyday wear.
- 20” chains – Ideal for statement pendants or when layering.
💡Layering tip: Pair a 16” chain with a 20” chain to create a balanced, eye-catching look. Or explore our Ocean Breeze Collection, designed specifically for effortless sea life layering in bronze.
Choosing for Gifting
Not sure what length to choose when buying a gift? Here’s a quick guide:
- 18" is the safest and most popular choice for both men and women.
- 16” works well if your recipient prefers a delicate, minimalist style.
- 20” is a thoughtful choice for anyone who loves bold pendants or layering multiple necklaces.
When in doubt, go for 18” — it suits almost everyone.
Materials & Chains Matter Too
The way a necklace hangs isn’t just about length. The weight and design of the pendant also make a difference. A heavier piece, like our detailed Seaplicity collection pieces sit slightly lower than the chain length suggests. Keep that in mind when choosing.
Shop with Confidence
No matter which length you choose, you can shop worry-free at Big Blue by Roland St John:
- 12-month defective item replacement
- 110% price match guarantee
- Friendly, personal service from a small team who cares
- A Business You Can Trust
Plus, our ocean-inspired designs are handcrafted by award-winning artist Roland St John, with every purchase helping to support marine conservation.
Ready to find your perfect ocean-inspired piece?
Explore our necklace collection and wear the ocean your way.