Brand sizing
Ring size guides by brand
Open the brand first, then convert. EU-brand pages start from circumference sizes; US-brand pages keep the native size and add UK, EU and millimetre anchors.
Native system Pandora and Cartier start in EU; Tiffany, Blue Nile, James Allen and others start in US.
Preset converter Each guide opens with the correct system already selected.
Exact-size answers High-intent Cartier and Pandora queries include neighbouring-size checks.
- Pandora
- Cartier
- Tiffany & Co.
- Blue Nile
- James Allen
- Kay Jewelers
- Zales
- Swarovski
- David Yurman
- Mejuri
- Tacori
- Catbird
Compare ring sizes by brand — Choose two brands to see their native sizing systems and fit notes side by side. Use the comparison to choose the right starting measurement, then confirm with the official brand guide before ordering.
Exact-size answers
- Cartier Love ring size 52 to US
- Cartier Love ring size 54 to US
- Cartier Love ring size 58 to US
- Cartier Love ring size 56 to US
- Cartier 54 to US ring size
- Pandora 54 in US ring size
- Pandora 52 in US ring size
- Pandora 48 in US ring size
- Pandora 58 in US ring size
Looking for a smart ring instead? See our smart ring sizing guides.
Ringsizely is independent and is not affiliated with, endorsed by, or sponsored by the brands named on this page. Brand names are used only to identify sizing systems; confirm the current size guide with the retailer before ordering.