Find Your Perfect Ring Size Match
If your jeweler uses another sizing format, our conversion guide makes it simple to find the right size.
If your jeweler uses another sizing format, our conversion guide makes it simple to find the right size.
Explore ring band widths from 2mm to 7mm and discover the perfect combination of comfort, elegance, and personal style. From slim and delicate designs to bold statement looks, each width offers a unique appearance and feel.
Use our visual comparison guide to find the band size that best matches your everyday style and preference.
Easily compare ring sizes across different international measurement systems. Use this guide to find your perfect fit with accurate diameter and circumference details.
| USA & Canada | UK / Australia | Japan / India / China | Europe | Diameter & Circumference (mm) |
|---|---|---|---|---|
| 3 | F | 4 | 4.25 | 14.05 / 44.14 |
| 4 | H | 7 | 6.75 | 14.88 / 46.80 |
| 5 | J 1/2 | 9 | 9.25 | 15.70 / 49.30 |
| 6 | L 1/2 | 11 | 11.75 | 16.51 / 51.90 |
| 7 | N 1/2 | 14 | 14.5 | 17.32 / 54.40 |
| 8 | P 1/2 | 16 | 17 | 18.14 / 57.00 |
| 9 | R 1/2 | 18 | 19.5 | 18.95 / 59.50 |
| 10 | T 1/2 | 20 | 22 | 19.76 / 62.10 |
| 11 | V 1/2 | 23 | 24.75 | 20.57 / 64.60 |
| 12 | X 1/2 | 25 | 27.25 | 21.39 / 67.20 |
| 13 | Z1 | 27 | 29.75 | 22.20 / 69.70 |
| 14 | Z3 | - | 32.25 | 23.01 / 72.30 |
| 15 | - | - | 34.75 | 24.23 / 76.10 |
Ring Measurement Tips
Choose the Right Time to Measure
Finger size can slightly change throughout the day, so measuring later in the day usually gives a more comfortable fit.
Avoid Extreme Temperatures
For accurate sizing, make sure your hands are at a normal room temperature before measuring.
Take Multiple Measurements
Measure your finger a few times to ensure consistent results and better accuracy.
Check with a Size Guide
Match your measurements with a ring size chart or conversion guide to find the perfect size.
Shop the Perfect Ring with Confidence
At NOVACARATS, we make choosing fine jewelry easy, comfortable, and stress-free.
At NOVACARATS, we aim to make your jewelry shopping experience smooth and enjoyable. Our detailed guides, expert support, and carefully curated collections help you find the perfect piece with confidence.
We use premium-quality materials including solid gold, sterling silver, lab-grown diamonds, and carefully selected gemstones. Every piece is crafted with attention to durability, beauty, and long-lasting shine.
Yes. NOVACARATS works with trusted suppliers who follow responsible sourcing practices and ethical standards. All diamonds and gemstones are selected with care to ensure quality, authenticity, and transparency.
To maintain the beauty of your jewelry, clean it gently with mild soap, warm water, and a soft cloth. Avoid exposure to harsh chemicals, perfumes, or heavy impact. Store each piece separately to help prevent scratches and damage.
Absolutely! NOVACARATS offers customization and personalization options for many designs. Whether you want engraving, stone selection, or a completely custom piece, our team can help create jewelry that reflects your personal style.
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.