Finding the perfect jewelry size can be confusing — especially when products are shown close-up in photos. This guide will help you understand how sizing works so you can order with confidence and love how your pieces look when they arrive.
⭐ Quick takeaway:
Jewelry measurements are always listed in millimeters (mm), not inches.
1 inch = 25.4 mm
Why Jewelry Uses Millimeters
Jewelry pieces are very small, so millimeters give a more accurate measurement than inches.
Examples:
3 mm = small, subtle stud
6 mm = medium everyday size
10 mm = larger, statement stud
Many customers accidentally use an inch ruler, and think the tiny lines are millimeters — they’re not. The small lines on an inch ruler are 1/16 of an inch, not mm.
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What Different Sizes Look Like
If you’re shopping for stud earrings, here’s a visual guide:
Size Visual description
3–4 mm Dainty, minimal, second-hole size
5–6 mm Everyday classic size
7–8 mm Bold and noticeable
9–10 mm Statement sparkle
💡 Tip: If you want them to stand out in photos or selfies, 6 mm and up is a good choice.
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How to Measure at Home
📏 The easiest trick:
Use a coin.
A dime is about 18 mm
A pencil eraser is about 7 mm
A rice grain is about 5–6 mm
Place the jewelry size next to one of those objects in your mind — it helps!
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Common Mistake: Zoomed Photos
Professional and Etsy photos are magnified to show detail.
This can make jewelry look bigger than it really is.
Always check the measurement in the description, not just the photos.
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Necklace Length Guide
Necklaces are measured in inches, not mm.
Length Where it sits
14–16” Collarbone
18” Everyday length
20–22” Slightly longer
24–30” Long, layering
Pro tip: Layer two different lengths for a stylish look.
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Rings and Bracelets
For rings:
Use a ring sizer
Or measure with a string and ruler
For bracelets:
Measure your wrist
Add ½ inch to 1 inch for comfort
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Sizing Summary
✔ Jewelry sizes are listed in millimeters
✔ 1 inch = 25.4 mm
✔ Photos are zoomed — always read the measurement
✔ Coin comparison makes it easy
✔ Necklace lengths are in inches
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Why Correct Sizing Matters
With gemstones, every millimeter makes a difference:
Sparkle
Coverage
Comfort
Weight
Look in photos
The right size helps you pick the perfect piece you’ll wear every day.
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Final Tip: When in doubt… ask!
If you’re unsure, send a quick message. We’re always happy to help you choose the right size before purchasing — no guesswork needed.