Gucci Ring Size Chart (2026): Italian IT to US, UK & EU Conversion

By myringsizecalculator.com · Updated 2026 · 8 min read

1. How Gucci Ring Sizing Works

Every Gucci ring is manufactured in Italy and stamped on the inside of the band with an Italian (IT) ring size. The IT system is based on the ring’s inner circumference in millimetres, with 40 subtracted. So a ring with a 52 mm inner circumference carries the stamp IT 12 (52 − 40 = 12).

This is different from the US, UK, and EU sizing systems most shoppers are familiar with, which is why many buyers order the wrong size when purchasing Gucci jewellery online. This chart converts every IT size directly to the US, UK (letter), EU (ISO), and Japanese systems alongside the inner diameter and circumference in mm.

2. Gucci Ring Size Chart: Complete IT to US, UK, EU & mm Conversion

★ = Most commonly purchased Gucci ring sizes · Highlighted rows = most popular sizes · IT = Italian size stamped inside Gucci bands

3. Quick IT → US Reference (Most Common Sizes)

4. How to Find Your Gucci Ring Size at Home

Gucci does not offer an in-home ring sizer kit (unlike Oura Ring). Use one of these four methods before ordering:

Method 1: Paper Strip (Most Accurate for First-Time Buyers)

1. Cut a strip of paper approximately 1 cm wide and 15 cm long.
2. Wrap it snugly around the base of the finger where the Gucci ring will be worn.
3. Mark the point where the paper first overlaps.
4. Lay it flat and measure from end to mark in millimetres — this is your circumference.
5. Subtract 40 from that number — the result is your Gucci IT size. Example: 52 mm − 40 = IT 12.
6. If your result falls between two IT numbers, order the larger IT size.

Method 2: Existing Ring Measurement

1. Choose a ring that fits comfortably on the target finger.
2. Lay it flat on a ruler and measure the inner diameter (edge to edge across the inside) in mm.
3. Match that measurement to the “Inner Diameter (mm)” column in the chart above.
4. Read the Gucci IT size from the first column.

Method 3: Calculate IT Size from US Size

If you know your US ring size, use this formula to find your approximate Gucci IT size:

Method 4: Visit a Gucci Store or Jeweller

Gucci boutiques and authorised retailers can measure your finger directly with a professional ring mandrel and give you your IT size in seconds. This is the most accurate method, particularly for the Gucci Interlocking G, Double G, and signet ring collections which have specific band widths that affect the ideal size.

5. Gucci Ring Size by Collection

6. Gucci Ring Size by Gender

Gucci does not publish separate men’s and women’s ring size charts. The Italian IT system applies to all rings. The practical difference is that women’s styles typically range from IT 08 to IT 18, while men’s styles, particularly signet rings and Icon bands, typically range from IT 17 to IT 27.

7. IT Size Categories: XS to XL

Gucci groups IT ring sizes into broad categories on their product pages. Here is what each category means in practical terms:

8. Do Gucci Rings Run True to Size?

Yes — Gucci rings are manufactured to precise Italian standards and run true to the IT size stamped inside the band. However, there are two common reasons buyers end up with the wrong size:

• Converting incorrectly from US/UK to IT. Always use the chart above, not a general ring size conversion tool, as minor differences exist between the IT system and other standards.
• Not accounting for band width. A standard slim ring at IT 12 and a wide Icon band at IT 12 will feel very different. Add 0.5–1 IT size for any Gucci ring wider than 5 mm.

Gucci’s return and exchange policy allows ring exchanges within 14 days of delivery for US customers with free return shipping. If you are between sizes, always order the larger IT size — a slightly loose ring is easier to resize than one that won’t go on the finger.

9. Gucci Ring Return & Resizing Policy

10. Frequently Asked Questions