At Jan Logan, we use only the best quality materials and stones in the production of our jewellery, made to the highest standards of quality and workmanship.

Damage and/or defects caused by fair wear and tear, accidents, use which is unreasonable or inconsistent with Jan Logan’s care instructions, dismantling or repair by persons other than a JanLogan representative are not covered by this guarantee.


Please be aware that ring sizes shown on janlogan.com reflect Australian/UK standard sizing. For example, a ring size 3 in the U.S. would be size F in Australian sizing. You can use the International Ring Size Chart  to convert your size accordingly.

Your ring should fit your finger comfortably – tight enough that it will not fall off, but loose enough to slide over your knuckle. When measuring your finger, for best results measure at the end of the day and when your fingers are warm as finger size changes depending on the time of day and the weather (fingers are generally smaller in the early morning and when cold). Measure finger size 3 to 4 times to eliminate an erroneous reading and avoid using string or paper to measure ring size as these materials can stretch or twist, yielding an inaccurate measurement.

All other sizing listed on janlogan.com, i.e. length of chain, width, etc. utilise the metric system of measurement and are generally in centimetres (cm) or millimetres (mm).