Round Trilogy Ring Lab-Grown Diamond in 18K Gold

Download the ring size guide to print (PDF)

Measure your own ring

1. Select a ring that properly fits the intended finger.
2. Measure the inside diameter of the ring and find it in the chart above.
3. If the ring falls between two sizes, order the larger size.

Measure your finger

Your ring should fit your finger comfortably; snug enough so that it will not fall off, but loose enough to slide over your knuckle.

Finger size changes depending on time of the day and the weather, for better results:

1. Measure your finger at the end of the day and when your fingers are warm. (Fingers are smaller in the early morning and when cold.)
2. Measure your finger size 3 to 4 times to eliminate an erroneous reading.

Avoid using string or paper to measure ring size as these materials can stretch or twist, yielding an inaccurate measurement.